Q: Is 31,221,675 a Prime Number?

 A: No, 31,221,675 is not a prime number.

Why is 31,221,675 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 31221675 can be evenly divided by 1 3 5 9 15 25 45 75 225 138,763 416,289 693,815 1,248,867 2,081,445 3,469,075 6,244,335 10,407,225 and 31,221,675, with no remainder.

Since 31,221,675 cannot be divided by just 1 and 31,221,675, it is not a prime number.


More Examples

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

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