Q: Is 111,980 a Prime Number?

A: No, 111,980 is not a prime number.

Why is 111,980 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 111980 can be evenly divided by 1 2 4 5 10 11 20 22 44 55 110 220 509 1,018 2,036 2,545 5,090 5,599 10,180 11,198 22,396 27,995 55,990 and 111,980, with no remainder.

Since 111,980 cannot be divided by just 1 and 111,980, it is not a prime number.

Number	111,978	111,979	111,981	111,982
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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