Q: Is 840,608 a Prime Number?
A: No, 840,608 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 840608 can be evenly divided by 1 2 4 8 16 32 109 218 241 436 482 872 964 1,744 1,928 3,488 3,856 7,712 26,269 52,538 105,076 210,152 420,304 and 840,608, with no remainder.
Since 840,608 cannot be divided by just 1 and 840,608, it is not a prime number.