Q: Is 720,678 a Prime Number?
A: No, 720,678 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 720678 can be evenly divided by 1 2 3 6 7 14 21 42 17,159 34,318 51,477 102,954 120,113 240,226 360,339 and 720,678, with no remainder.
Since 720,678 cannot be divided by just 1 and 720,678, it is not a prime number.