Q: Is 646,842 a Prime Number?
A: No, 646,842 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 646842 can be evenly divided by 1 2 3 6 7 14 21 42 15,401 30,802 46,203 92,406 107,807 215,614 323,421 and 646,842, with no remainder.
Since 646,842 cannot be divided by just 1 and 646,842, it is not a prime number.