Q: Is 676,840 a Prime Number?
A: No, 676,840 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 676840 can be evenly divided by 1 2 4 5 8 10 20 40 16,921 33,842 67,684 84,605 135,368 169,210 338,420 and 676,840, with no remainder.
Since 676,840 cannot be divided by just 1 and 676,840, it is not a prime number.