Q: Is 121,278,421 a Prime Number?

 A: No, 121,278,421 is not a prime number.

Why is 121,278,421 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 121278421 can be evenly divided by 1 11 97 121 1,067 10,333 11,737 113,663 1,002,301 1,250,293 11,025,311 and 121,278,421, with no remainder.

Since 121,278,421 cannot be divided by just 1 and 121,278,421, it is not a prime number.


More Examples

Number 121,278,419121,278,420121,278,422121,278,423
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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