Q: Is 721,360 a Prime Number?
A: No, 721,360 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 721360 can be evenly divided by 1 2 4 5 8 10 16 20 40 71 80 127 142 254 284 355 508 568 635 710 1,016 1,136 1,270 1,420 2,032 2,540 2,840 5,080 5,680 9,017 10,160 18,034 36,068 45,085 72,136 90,170 144,272 180,340 360,680 and 721,360, with no remainder.
Since 721,360 cannot be divided by just 1 and 721,360, it is not a prime number.