Q: Is 531,625 a Prime Number?
A: No, 531,625 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 531625 can be evenly divided by 1 5 25 125 4,253 21,265 106,325 and 531,625, with no remainder.
Since 531,625 cannot be divided by just 1 and 531,625, it is not a prime number.