Q: Is 721,272 a Prime Number?
A: No, 721,272 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 721272 can be evenly divided by 1 2 3 4 6 8 12 24 41 82 123 164 246 328 492 733 984 1,466 2,199 2,932 4,398 5,864 8,796 17,592 30,053 60,106 90,159 120,212 180,318 240,424 360,636 and 721,272, with no remainder.
Since 721,272 cannot be divided by just 1 and 721,272, it is not a prime number.