Q: Is 509,425 a Prime Number?
A: No, 509,425 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 509425 can be evenly divided by 1 5 7 25 35 41 71 175 205 287 355 497 1,025 1,435 1,775 2,485 2,911 7,175 12,425 14,555 20,377 72,775 101,885 and 509,425, with no remainder.
Since 509,425 cannot be divided by just 1 and 509,425, it is not a prime number.