Q: Is 721,122 a Prime Number?
A: No, 721,122 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 721122 can be evenly divided by 1 2 3 6 31 62 93 186 3,877 7,754 11,631 23,262 120,187 240,374 360,561 and 721,122, with no remainder.
Since 721,122 cannot be divided by just 1 and 721,122, it is not a prime number.