Q: Is 721,250 a Prime Number?
A: No, 721,250 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 721250 can be evenly divided by 1 2 5 10 25 50 125 250 577 625 1,154 1,250 2,885 5,770 14,425 28,850 72,125 144,250 360,625 and 721,250, with no remainder.
Since 721,250 cannot be divided by just 1 and 721,250, it is not a prime number.