Q: Is 17,145 a Prime Number?

A: No, 17,145 is not a prime number.

Why is 17,145 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 17145 can be evenly divided by 1 3 5 9 15 27 45 127 135 381 635 1,143 1,905 3,429 5,715 and 17,145, with no remainder.

Since 17,145 cannot be divided by just 1 and 17,145, it is not a prime number.

Number	17,143	17,144	17,146	17,147
Prime?	no	no	no	no

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

General Questions

Factoring Questions

Calculation Questions

Miscellaneous Questions