Q: Is 78,945 a Prime Number?

A: No, 78,945 is not a prime number.

Why is 78,945 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 78945 can be evenly divided by 1 3 5 15 19 57 95 277 285 831 1,385 4,155 5,263 15,789 26,315 and 78,945, with no remainder.

Since 78,945 cannot be divided by just 1 and 78,945, it is not a prime number.

Number	78,943	78,944	78,946	78,947
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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