Composite numbers room numbers with more than 2 factors. Numbers can be share on the basis of the variety of factors lock have. If a number has actually just two components - 1 and the number itself, then it is a prime number. However, most numbers have much more than two factors, and also they are referred to as composite numbers. Top top this page, we will discover the difference in between prime and composite numbers, the smallest composite number, and also odd composite numbers. The last one is interesting because there are several odd composite numbers, unlike 2, i m sorry is the only even prime number.

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1.What are Composite Numbers?
2.Properties that Composite Numbers
3.How to discover Composite Numbers?
4.Types of Composite Numbers
5.Smallest Composite Number
6.FAQs top top Composite Numbers

What space Composite Numbers?

Composite numbers can be identified as herbal numbers that have more than 2 factors. In various other words, a number the is divisible through a number other than 1 and also the number itself, is referred to as a composite number. Let’s learn an ext about composite numbers through examples.

Examples the Composite Numbers

4, 6, 8, 9, and 10 room the first couple of composite numbers. Let's take it 4 and 6. In the over example, 4 and 6 are dubbed composite numbers since they space made through combining various other numbers. This idea is important and we used it in a theorem called the basic Theorem the Arithmetic. Let's continue to recognize the important features that composite numbers.

Properties of Composite Numbers

A composite number is a hopeful integer that deserve to be formed by multiplying two smaller confident integers. Note the properties of a composite number provided below:

All composite numbers space evenly divisible by smaller sized numbers that can be element or composite.Every composite number is consisted of of two or an ext prime numbers.

Let us have actually a look at the properties of the composite number 72 in stimulate to understand the concept in a much better way.


This figure shows that by multiply these confident integers we obtain a composite number.

How to find Composite Numbers?

In order to uncover a composite number, we uncover the factors of the given number. If the number has much more than 2 factors, then it is composite. The best way to figure out a composite number is to carry out the divisibility test. The divisibility test helps united state to identify whether a number is a prime or a composite number. Divisibility method that a number is separated evenly (with no remainder) by one more number.

To perform this, examine to watch if the number have the right to be separated by these typical factors: 2, 3, 5, 7, 11, and 13. If the given number is even, then begin checking with the number 2. If the number ends through a 0 or 5, then inspect it through 5. If the number can’t be divided by any type of of these given numbers, climate the number is a element number. For example, 68 is divisible by 2, which means it has components other than 1 and also 68, so, we have the right to say 68 is a composite number.

Types the Composite Numbers

The 2 main species of composite number in maths are odd composite numbers and even composite numbers. Let us have a look in ~ the 2 of lock individually:

Odd Composite Numbers

All the odd number which are not prime are odd composite numbers. For example, 9, 15, 21, 25, 27 room odd composite numbers. Take into consideration the number 1, 2, 3, 4, 9, 10, 11, 12 and 15. Right here 9 and also 15 are the odd composites since these 2 numbers have actually odd divisors and also satisfy the composite condition.

Even Composite Numbers

All the also numbers which are not prime are also composite numbers. For example, 4, 6, 8, 10, 12, 14, 16, are even composite numbers. Think about the numbers 1, 2, 3, 4, 9, 10, 11, 12 and also 15 again. Here 4, 10, and 12 are the even composites since they have even divisors and satisfy the composite condition.

Smallest Composite Number

A composite number is characterized as a number that has actually divisors other than 1 and the number itself. Start counting: 1, 2, 3, 4, 5, 6, .... So on. 1 is not a composite number because its single divisor is 1. 2 is not a composite number due to the fact that it has only 2 divisors, i.e., 1 and also the number 2 itself. 3 is not a composite number because it has actually only two divisors, i.e., 1 and the number 3 itself. Let’s look in ~ number 4. Its divisors room 1, 2, and 4. Number 4 satisfies the criteria that a composite number. So, 4 is the smallest composite number.

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Composite number Examples

Example 1: determine whether 486 is a composite number or not?


The given number is 486. Its components or divisors room - 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, and also 486. This shows that it has components other 보다 1 and also itself.

∴ 486 is a composite number.

Example 2: settle the adhering to riddle: "I lie between 30 and also 40; I have only two prime factors. The amount of mine prime determinants is 5; who am I?" A composite number or a element number.


The sum of the prime components of this unknown number is 5. We know that the prime numbers whose sum is 5 space 2 and 3. Now, we need to find a number that has 2 and also 3 as its just prime factors and which lies between 30 and 40. Let united state see the element factorization that 36: 36 = 2 × 2 × 3 × 3. So, 36 satisfies the provided conditions.

∴ 36 is the compelled number. It is a composite number.

Example 3: What is the product that the very first five composite numbers?


To discover the product of the an initial five composite number let us very first list the end the composite numbers.

The an initial five composite numbers are 4, 6, 8, 9, 10

The product that the provided composite number = 4 × 6 × 8 × 9 × 10 = 17280

The product of the very first five composite number is 17280.

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Practice questions on Composite Numbers

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FAQs top top Composite Numbers

What space Composite numbers in Math?

In math, numbers are the straightforward building blocks. Composite numbers space the species of numbers the have more than two factors. For example, number 6 is a composite number it has 1, 2, 3, and 6 together its factors.

How to discover Composite Numbers?

To discover whether a offered number is composite, we just find the number of factors it has. If the has more than 2 factors, then the number is composite. Because that example, 4 has actually three factors, 1, 2, and 4. So, that is a composite number.

Is 2 a Composite Number?

No, 2 is no a composite number, the is the only also prime number. A composite number has an ext than 2 factors, other than 1 and the number itself. Here, 2 has only 2 factors, 1 and 2 itself. Therefore, 2 is a element number.

What room the Composite Numbers between 1 and 100?

The composite numbers in between 1 and also 100 are-

4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.

What is a Composite Number and also Prime Number?

A number the is divisible through a number other than 1 and also the number itself, is referred to as a composite number. Because that example, 4, 6 room composite numbers. Whereas, a number that is divisible only by 1 and itself is dubbed a element number, like, 2, 3, and also 5.

What is one Odd Composite Number?

All the odd numbers (excluding 1) which are not prime room odd composite numbers. Because that example, 9 and 15 space the odd composite numbers.

What is the smallest Composite Number?

A composite number has much more than two factors, various other than 1 and also the number itself. Here, 4 satisfies this condition, and there is no various other number smaller sized than 4 which is composite. Therefore, 4 is the the smallest composite number.

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What is the Difference in between a Prime and also a Composite Number?

A element number has actually only 2 factors, 1 and also the number itself, whereas, a composite number has more than two factors. For example, 5 has only two factors, 1 and 5, so it is a element number. Vice versa, 6 has 4 factors, 1, 2, 3, and 6, so it is a composite number.