Q: Is 72,121,511 a Prime Number?

 A: No, 72,121,511 is not a prime number.

Why is 72,121,511 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 72121511 can be evenly divided by 1 7 11 19 77 133 209 1,463 49,297 345,079 542,267 936,643 3,795,869 6,556,501 10,303,073 and 72,121,511, with no remainder.

Since 72,121,511 cannot be divided by just 1 and 72,121,511, 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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