Q: Is 3,940 a Prime Number?

A: No, 3,940 is not a prime number.

Why is 3,940 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 3940 can be evenly divided by 1 2 4 5 10 20 197 394 788 985 1,970 and 3,940, with no remainder.

Since 3,940 cannot be divided by just 1 and 3,940, it is not a prime number.

Number	3,938	3,939	3,941	3,942
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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