Q: Is 721,106 a Prime Number?
A: No, 721,106 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 721106 can be evenly divided by 1 2 17 34 127 167 254 334 2,159 2,839 4,318 5,678 21,209 42,418 360,553 and 721,106, with no remainder.
Since 721,106 cannot be divided by just 1 and 721,106, it is not a prime number.