Q: Is 78 a Prime Number?

 A: No, 78 is not a prime number.

Why is 78 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 78 can be evenly divided by 1 2 3 6 13 26 39 and 78, with no remainder.

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


More Examples

Number 76777980
Prime? nonoyesno
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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