Q: Is 515,125 a Prime Number?
A: No, 515,125 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 515125 can be evenly divided by 1 5 13 25 65 125 317 325 1,585 1,625 4,121 7,925 20,605 39,625 103,025 and 515,125, with no remainder.
Since 515,125 cannot be divided by just 1 and 515,125, it is not a prime number.