# Is 31 Prime Number or Composite Number

Created by: Team Maths - Examples.com, Last Updated: May 7, 2024

## Is 31 a Prime Number?

### Yes – 31 is a prime number.

Why Yes: 31 is a prime number because it fulfils the prime criteria of having exactly two distinct positive divisors: 1 and itself (31). See any number if it’s prime number or not

## Is 31 a Composite Number?

### NO – 31 is not a Composite Number

Why No: This is correct; 31 is not a composite number because it does not have more than two distinct positive divisors. It only has two: 1 and itself (31).

## Problem Statements

Is 31 a prime number? Yes
Is 31 a composite number? No
Is 31 a perfect square? No
Factors of 31 1, 31
Multiples of 31 31, 62, 93, 124, 155, 186, 217, 248, 279, 310
Cube Root of 31 3.14
Square of 31 961
Square Root of 31 5.57
Is 31 a Perfect Square? No
Is 31 a Perfect Cube? No
Is 31 an Irrational number? No
Is 31 a Rational number? Yes
Is 31 a Real number? Yes
Is 31 an Integer? Yes
Is 31 a Natural number? Yes
Is 31 a Whole number? Yes
Is 31 an Even or odd number? No (31 is an odd number)
Is 31 an Ordinal number? Yes
Is 31 a Complex number? Yes (as all real numbers are also complex numbers)

## What are the factors of 31?

The factors of 31 are 1 and 31. Since 31 is a prime number, its only factors are 1 and itself. There are no more factors of 31.

## What Kind of Number is 31?

• The factors of 31 are 1 and 31.
• 31 is a prime number.
• 31 is one of the odd prime numbers and is an odd number.
• 31 is considered a significant number in various contexts.
• 31 is a natural number.
• 31 is a positive integer.
• 31 is not a composite number.
• 31 is an odd number.
• 31 is a rational number.
• 31 is a whole number.

31 is recognized as a prime number because it has exactly two divisors: 1 and itself, distinguishing it from composite numbers that have more than two divisors. The number 31 holds a unique place in mathematics and various cultural contexts, often associated with its indivisibility and purity.

## FAQS

What is 31 as a number?

31 is a prime number, indivisible by any number other than 1 and itself, making it unique among integers for its distinct prime property.

Is 31 an Integer?

Yes, 31 is an integer. It’s a whole number that is not a fraction or decimal, fitting perfectly within the set of integers which includes all whole numbers and their negatives.

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