Q: Is 243,421,005 a Prime Number?

 A: No, 243,421,005 is not a prime number.

Why is 243,421,005 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 243421005 can be evenly divided by 1 3 5 15 16,228,067 48,684,201 81,140,335 and 243,421,005, with no remainder.

Since 243,421,005 cannot be divided by just 1 and 243,421,005, it is not a prime number.


More Examples

Number 243,421,003243,421,004243,421,006243,421,007
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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