Q: Is 17,980 a Prime Number?

A: No, 17,980 is not a prime number.

Why is 17,980 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 17980 can be evenly divided by 1 2 4 5 10 20 29 31 58 62 116 124 145 155 290 310 580 620 899 1,798 3,596 4,495 8,990 and 17,980, with no remainder.

Since 17,980 cannot be divided by just 1 and 17,980, it is not a prime number.

Number	17,978	17,979	17,981	17,982
Prime?	no	no	yes	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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