Q: Is 125,517 a Prime Number?
A: No, 125,517 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 125517 can be evenly divided by 1 3 7 21 43 129 139 301 417 903 973 2,919 5,977 17,931 41,839 and 125,517, with no remainder.
Since 125,517 cannot be divided by just 1 and 125,517, it is not a prime number.