Q: Is 121,121,210 a Prime Number?

 A: No, 121,121,210 is not a prime number.

Why is 121,121,210 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 121121210 can be evenly divided by 1 2 5 7 10 14 35 70 1,730,303 3,460,606 8,651,515 12,112,121 17,303,030 24,224,242 60,560,605 and 121,121,210, with no remainder.

Since 121,121,210 cannot be divided by just 1 and 121,121,210, it is not a prime number.


More Examples

Number 121,121,208121,121,209121,121,211121,121,212
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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