Q: Is 1,240,005 a Prime Number?

 A: No, 1,240,005 is not a prime number.

Why is 1,240,005 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 1240005 can be evenly divided by 1 3 5 13 15 39 65 195 6,359 19,077 31,795 82,667 95,385 248,001 413,335 and 1,240,005, with no remainder.

Since 1,240,005 cannot be divided by just 1 and 1,240,005, it is not a prime number.


More Examples

Number 1,240,0031,240,0041,240,0061,240,007
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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