Q: Is 722,775 a Prime Number?
A: No, 722,775 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 722775 can be evenly divided by 1 3 5 15 23 25 69 75 115 345 419 575 1,257 1,725 2,095 6,285 9,637 10,475 28,911 31,425 48,185 144,555 240,925 and 722,775, with no remainder.
Since 722,775 cannot be divided by just 1 and 722,775, it is not a prime number.