Q: Is 78,608 a Prime Number?

A: No, 78,608 is not a prime number.

Why is 78,608 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 78608 can be evenly divided by 1 2 4 8 16 17 34 68 136 272 289 578 1,156 2,312 4,624 4,913 9,826 19,652 39,304 and 78,608, with no remainder.

Since 78,608 cannot be divided by just 1 and 78,608, it is not a prime number.

Number	78,606	78,607	78,609	78,610
Prime?	no	yes	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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