Q: Is 123,981 a Prime Number?

A: No, 123,981 is not a prime number.

Why is 123,981 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 123981 can be evenly divided by 1 3 11 13 17 33 39 51 143 187 221 289 429 561 663 867 2,431 3,179 3,757 7,293 9,537 11,271 41,327 and 123,981, with no remainder.

Since 123,981 cannot be divided by just 1 and 123,981, it is not a prime number.

Number	123,979	123,980	123,982	123,983
Prime?	yes	no	no	yes

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

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