Q: Is 509,445 a Prime Number?
A: No, 509,445 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 509445 can be evenly divided by 1 3 5 9 15 45 11,321 33,963 56,605 101,889 169,815 and 509,445, with no remainder.
Since 509,445 cannot be divided by just 1 and 509,445, it is not a prime number.