Q: Is 400,121,001 a Prime Number?

 A: No, 400,121,001 is not a prime number.

Why is 400,121,001 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 400121001 can be evenly divided by 1 3 7 9 21 63 6,351,127 19,053,381 44,457,889 57,160,143 133,373,667 and 400,121,001, with no remainder.

Since 400,121,001 cannot be divided by just 1 and 400,121,001, it is not a prime number.


More Examples

Number 400,120,999400,121,000400,121,002400,121,003
Prime? nononoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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