Q: Is 78,855 a Prime Number?

A: No, 78,855 is not a prime number.

Why is 78,855 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 78855 can be evenly divided by 1 3 5 7 15 21 35 105 751 2,253 3,755 5,257 11,265 15,771 26,285 and 78,855, with no remainder.

Since 78,855 cannot be divided by just 1 and 78,855, it is not a prime number.

Number	78,853	78,854	78,856	78,857
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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