Q: Is 212,121,009 a Prime Number?

 A: No, 212,121,009 is not a prime number.

Why is 212,121,009 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 212121009 can be evenly divided by 1 3 9 173 519 1,557 136,237 408,711 1,226,133 23,569,001 70,707,003 and 212,121,009, with no remainder.

Since 212,121,009 cannot be divided by just 1 and 212,121,009, it is not a prime number.


More Examples

Number 212,121,007212,121,008212,121,010212,121,011
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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