Q: Is 145,255 a Prime Number?

A: No, 145,255 is not a prime number.

Why is 145,255 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 145255 can be evenly divided by 1 5 11 19 55 95 139 209 695 1,045 1,529 2,641 7,645 13,205 29,051 and 145,255, with no remainder.

Since 145,255 cannot be divided by just 1 and 145,255, it is not a prime number.

Number	145,253	145,254	145,256	145,257
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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