# Is 40 Prime Number or Composite Number

Created by: Team Maths - Examples.com, Last Updated: August 23, 2024

## Is 40 a Prime Number?

### No – 40 is not a Prime Number.

Why No: 40 is not a prime number because it does not meet the prime criteria of having exactly two distinct positive divisors: 1 and itself. See any number if it’s prime number or not

## Is 40 a Composite Number?

### Yes – 40 is a Composite Number.

Why Yes: 40 is a composite number because it has more than two distinct positive divisors. It has 1, 2, 4, 5, 8, 10, 20, and itself (40).

## Problem Statements

Is 40 a prime number? No
Is 40 a composite number? Yes
Is 40 a perfect square? No
Factors of 40 1, 2, 4, 5, 8, 10, 20, 40
Multiples of 40 40, 80, 120, 160, 200, 240, 280, 320, 360, 400
Cube Root of 40 3.420
Square of 40 1600
Square Root of 40 6.325
Is 40 a Perfect Square? No
Is 40 a Perfect Cube? No
Is 40 an Irrational number No
Is 40 a Rational number Yes
Is 40 a Real number Yes
Is 40 an Integer Yes
Is 40 a Natural number Yes
Is 40 a Whole number Yes
Is 40 an Even or odd number Yes (40 is an even number)
Is 40 an Ordinal number Yes
Is 40 a Complex number Yes (as all real numbers are also complex numbers)

## What are the factors of 40?

The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. 40 is not a prime number because it is divisible by numbers other than 1 and itself, highlighting its composite nature. It has multiple factors, making it clear that it is a composite number and not a prime number.

## What Kind of Number is 40?

• 40 is traditionally categorized as a composite number because it has more than two distinct positive divisors: 1, 2, 4, 5, 8, 10, 20, and itself.
• 40 is one of the even numbers; it is an even number.
• 40 is considered significant in various contexts, potentially for its mathematical properties as a product of prime factors.
• 40 is a natural number.
• 40 is a positive integer.
• 40 is discussed in the context of composite numbers rather than prime numbers.
• 40 is an even number.
• 40 is a rational number.
• 40 is a whole number.

40 is recognized for its status as a composite number, marked by its divisibility by numbers other than just 1 and itself. The number 40, as a composite number, holds a distinct place in mathematics and conceptual frameworks. Its properties as an even number, a composite, and a natural number make it a notable figure in various mathematical discussions.

## What is the composite number under 40?

The composite numbers under 40 are all non-prime numbers greater than 1 and less than 40, excluding 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, and 37.

## How to do prime factorization of 40?

To do prime factorization of 40, divide it by the smallest prime number (2) repeatedly until you cannot divide evenly anymore, then proceed with the next smallest prime (5): 23×5

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