# Is 91 Prime Number or Composite Number

Last Updated: July 31, 2024

## Is 91 Prime Number or Composite Number

### Is 91 a Prime Number?

No: Why No: 91 is not a prime number because it does not meet the prime criteria of having exactly two distinct positive divisors: 1 and itself. Check Prime or Not.

### Is 91 a Composite Number?

Why Yes: 91 is a composite number because it has more than two distinct positive divisors. It is divisible by 1, 7, 13, and itself (91).

## Problem Statements

Is 91 a prime number? No
Is 91 a composite number? Yes
Is 91 a perfect square? No
Factors of 91 1, 7, 13, 91
Multiples of 91 91, 182, 273, 364, 455, 546, 637, 728, 819, 910
Cube Root of 91 Approximately 4.497
Square of 91 8281
Square Root of 91 Approximately 9.539
Is 91 a Perfect Cube? No
Is 91 an Irrational number No
Is 91 a Rational number Yes
Is 91 a Real number Yes
Is 91 an Integer Yes
Is 91 a Natural number Yes
Is 91 a Whole number Yes
Is 91 an Even or odd number Yes (91 is an odd number)
Is 91 an Ordinal number Yes
Is 91 a Complex number Yes (as all real numbers are also complex numbers)

## What are the factors of 91?

The factors of 91 are 1, 7, 13, and 91. 91 is not a prime number because it is divisible by numbers other than 1 and itself, demonstrating it has more than two factors. This clarity confirms that it is a composite number, not a prime number.

## What Kind of Number is 91?

• Composite Number: 91 has more than two distinct positive divisors (1, 7, 13, 91), making it composite.
• Odd Number: 91 is an odd number, not evenly divisible by 2.
• Significance in Various Contexts: Its unique properties as a composite and odd number give it special significance.
• Natural Number: 91 is a natural number, part of the set of positive integers starting from 1.
• Positive Integer: It is a positive integer, indicating its value is greater than 0.
• Discussed Within Composite Numbers: 91 is often discussed in the context of composite numbers due to its multiple divisors.
• Rational Number: 91 is a rational number, expressible as a fraction or ratio of two integers.
• Whole Number: As a non-negative number, 91 is also classified as a whole number.

## Nearest Prime Number of 91

The nearest prime numbers to 91 are 89 and 97. 89 is the closest prime number less than 91, and 97 is the closest prime number greater than 91.

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