Q: Is 243,423,009 a Prime Number?

 A: No, 243,423,009 is not a prime number.

Why is 243,423,009 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 243423009 can be evenly divided by 1 3 9 27 223 669 2,007 6,021 40,429 121,287 363,861 1,091,583 9,015,667 27,047,001 81,141,003 and 243,423,009, with no remainder.

Since 243,423,009 cannot be divided by just 1 and 243,423,009, it is not a prime number.


More Examples

Number 243,423,007243,423,008243,423,010243,423,011
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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