Q: Is 400,122 a Prime Number?

A: No, 400,122 is not a prime number.

Why is 400,122 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 400122 can be evenly divided by 1 2 3 6 9 18 22,229 44,458 66,687 133,374 200,061 and 400,122, with no remainder.

Since 400,122 cannot be divided by just 1 and 400,122, it is not a prime number.

Number	400,120	400,121	400,123	400,124
Prime?	no	no	yes	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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