Q: Is 625,720 a Prime Number?
A: No, 625,720 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 625720 can be evenly divided by 1 2 4 5 8 10 20 40 15,643 31,286 62,572 78,215 125,144 156,430 312,860 and 625,720, with no remainder.
Since 625,720 cannot be divided by just 1 and 625,720, it is not a prime number.