Q: Is 131,145 a Prime Number?

A: No, 131,145 is not a prime number.

Why is 131,145 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 131145 can be evenly divided by 1 3 5 7 15 21 35 105 1,249 3,747 6,245 8,743 18,735 26,229 43,715 and 131,145, with no remainder.

Since 131,145 cannot be divided by just 1 and 131,145, it is not a prime number.

Number	131,143	131,144	131,146	131,147
Prime?	yes	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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