Q: Is 231,001,221 a Prime Number?

 A: No, 231,001,221 is not a prime number.

Why is 231,001,221 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 231001221 can be evenly divided by 1 3 11 19 33 57 121 209 363 627 2,299 6,897 33,493 100,479 368,423 636,367 1,105,269 1,909,101 4,052,653 7,000,037 12,157,959 21,000,111 77,000,407 and 231,001,221, with no remainder.

Since 231,001,221 cannot be divided by just 1 and 231,001,221, it is not a prime number.


More Examples

Number 231,001,219231,001,220231,001,222231,001,223
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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