Q: Is 722,380 a Prime Number?
A: No, 722,380 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 722380 can be evenly divided by 1 2 4 5 10 19 20 38 76 95 190 380 1,901 3,802 7,604 9,505 19,010 36,119 38,020 72,238 144,476 180,595 361,190 and 722,380, with no remainder.
Since 722,380 cannot be divided by just 1 and 722,380, it is not a prime number.