Q: Is 722,720 a Prime Number?
A: No, 722,720 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 722720 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 4,517 9,034 18,068 22,585 36,136 45,170 72,272 90,340 144,544 180,680 361,360 and 722,720, with no remainder.
Since 722,720 cannot be divided by just 1 and 722,720, it is not a prime number.