Q: Is 231,500 a Prime Number?

A: No, 231,500 is not a prime number.

Why is 231,500 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 231500 can be evenly divided by 1 2 4 5 10 20 25 50 100 125 250 463 500 926 1,852 2,315 4,630 9,260 11,575 23,150 46,300 57,875 115,750 and 231,500, with no remainder.

Since 231,500 cannot be divided by just 1 and 231,500, it is not a prime number.

Number	231,498	231,499	231,501	231,502
Prime?	no	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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