91 is not a prime number as it is divisible by 7 and 13.

A prime number is only divisible by itself and 1.

The prime numbers between 1 and 100 are:

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97!

No, for a number to be prime it must have two and only two factors.

Example: 13 : 1, 13

The number 91 has four different factors.

91: 1, 7, 13, 91

This makes it a composite number instead of a prime number.

A prime number is any whole number greater than 1 which only have 2 factors itself and 1. Since 91 has more than 2 factors, then it is not a prime number.

91 has the following factors: 1, 7, 13, and 91

91 is not a prime number. 91=7*13.

A prime number is a number that is only divisible by 1 and itself (for example 7 and 13 are prime numbers)

Its not a prime number because it is divisible by 1,3,7.a prime number is divisible by 1 and itself so 91 is not a prime number

...91 is not a prime number. If it's prime it can only be divisible by 1 and 91. However, you can divide 91 by 7 and 13.

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