Q: Is 396,840 a Prime Number?
A: No, 396,840 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 396840 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 3,307 6,614 9,921 13,228 16,535 19,842 26,456 33,070 39,684 49,605 66,140 79,368 99,210 132,280 198,420 and 396,840, with no remainder.
Since 396,840 cannot be divided by just 1 and 396,840, it is not a prime number.