Q: Is 138,666 a Prime Number?

A: No, 138,666 is not a prime number.

Why is 138,666 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 138666 can be evenly divided by 1 2 3 6 11 22 33 66 121 191 242 363 382 573 726 1,146 2,101 4,202 6,303 12,606 23,111 46,222 69,333 and 138,666, with no remainder.

Since 138,666 cannot be divided by just 1 and 138,666, it is not a prime number.

Number	138,664	138,665	138,667	138,668
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).

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