# Is 90 Prime Number or Composite Number

Last Updated: April 27, 2024

## Is 90 a Prime Number?

### No – 90 is not a Prime Number.

Why No: 90 is not a prime number because it does not meet the prime criteria of having exactly two distinct positive divisors: 1 and itself. Check if any number is prime or not

## Is 90 a Composite Number?

### Yes – 90 is a Composite Number.

Why Yes: 90 is a composite number because it has more than two distinct positive divisors. It is divisible by 1, 2, 3, 5, 9, 10, 18, 30, 45, and itself (90).

## Problem Statements

Is 90 a prime number? No
Is 90 a composite number? Yes
Is 90 a perfect square? No
Factors of 90 1, 2, 3, 5, 9, 10, 18, 30, 45, 90
Multiples of 90 90, 180, 270, 360, 450, 540, 630, 720, 810, 900
Cube Root of 90 4.481
Square of 90 8100
Square Root of 90 9.487
Is 90 a Perfect Cube? No
Is 90 an Irrational number No
Is 90 a Rational number Yes
Is 90 a Real number Yes
Is 90 an Integer Yes
Is 90 a Natural number Yes
Is 90 a Whole number Yes
Is 90 an Even or odd number No (90 is an even number)
Is 90 an Ordinal number Yes
Is 90 a Complex number Yes (as all real numbers are also complex numbers)

## What are the factors of 90?

The factors of 90 are 1, 2, 3, 5, 9, 10, 18, 30, 45, and 90. This variety of factors confirms that 90 is a composite number. Unlike a prime number, which is divisible only by 1 and itself, 90’s wide range of divisibility showcases its composite nature.

## What Kind of Number is 90?

90 is categorized as a composite number because it has more than two distinct positive divisors: 1, 2, 3, 5, 9, 10, 18, 30, 45, and itself.

• 90 is an even number, distinguishing it in various numerical contexts.
• As a composite number, 90’s unique properties and wide range of factors make it a subject of interest in mathematical discussions.
• It is a natural number and a positive integer, reflecting its place in the realm of whole numbers.
• 90’s status as a rational number further categorizes it within the spectrum of real numbers, which are also considered complex numbers by definition.

## Nearest Prime Number to 90

The nearest prime numbers to 90 are 89 and 97. 89 is the closest prime number less than 90, and 97 is the closest prime number greater than 90

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