Q: Is 509,172 a Prime Number?
A: No, 509,172 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 509172 can be evenly divided by 1 2 3 4 6 12 151 281 302 453 562 604 843 906 1,124 1,686 1,812 3,372 42,431 84,862 127,293 169,724 254,586 and 509,172, with no remainder.
Since 509,172 cannot be divided by just 1 and 509,172, it is not a prime number.