Q: Is 722,624 a Prime Number?
A: No, 722,624 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 722624 can be evenly divided by 1 2 4 7 8 14 16 28 32 56 64 112 224 448 1,613 3,226 6,452 11,291 12,904 22,582 25,808 45,164 51,616 90,328 103,232 180,656 361,312 and 722,624, with no remainder.
Since 722,624 cannot be divided by just 1 and 722,624, it is not a prime number.