Q: Is 509,551 a Prime Number?
A: No, 509,551 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 509551 can be evenly divided by 1 7 49 10,399 72,793 and 509,551, with no remainder.
Since 509,551 cannot be divided by just 1 and 509,551, it is not a prime number.