Q: Is 9,975 a Prime Number?

A: No, 9,975 is not a prime number.

Why is 9,975 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 9975 can be evenly divided by 1 3 5 7 15 19 21 25 35 57 75 95 105 133 175 285 399 475 525 665 1,425 1,995 3,325 and 9,975, with no remainder.

Since 9,975 cannot be divided by just 1 and 9,975, it is not a prime number.

Number	9,973	9,974	9,976	9,977
Prime?	yes	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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