Q: Is 420,189 a Prime Number?

 A: No, 420,189 is not a prime number.

Why is 420,189 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 420189 can be evenly divided by 1 3 7 11 17 21 33 51 77 107 119 187 231 321 357 561 749 1,177 1,309 1,819 2,247 3,531 3,927 5,457 8,239 12,733 20,009 24,717 38,199 60,027 140,063 and 420,189, with no remainder.

Since 420,189 cannot be divided by just 1 and 420,189, it is not a prime number.


More Examples

Number 420,187420,188420,190420,191
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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