Q: Is 131,231,421 a Prime Number?

 A: No, 131,231,421 is not a prime number.

Why is 131,231,421 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 131231421 can be evenly divided by 1 3 9 27 81 101 243 303 909 2,727 5,347 8,181 16,041 24,543 48,123 144,369 433,107 540,047 1,299,321 1,620,141 4,860,423 14,581,269 43,743,807 and 131,231,421, with no remainder.

Since 131,231,421 cannot be divided by just 1 and 131,231,421, it is not a prime number.


More Examples

Number 131,231,419131,231,420131,231,422131,231,423
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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