Q: Is 211,121,209 a Prime Number?

 A: No, 211,121,209 is not a prime number.

Why is 211,121,209 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 211121209 can be evenly divided by 1 13 23 101 299 1,313 2,323 6,991 30,199 90,883 160,793 706,091 2,090,309 9,179,183 16,240,093 and 211,121,209, with no remainder.

Since 211,121,209 cannot be divided by just 1 and 211,121,209, it is not a prime number.


More Examples

Number 211,121,207211,121,208211,121,210211,121,211
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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