Q: Is 506,691 a Prime Number?
A: No, 506,691 is 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 506691 can be evenly divided by 1 3 9 56,299 168,897 and 506,691, with no remainder.
Since 506,691 cannot be divided by just 1 and 506,691, it is not a prime number.