Q: Is 631,320 a Prime Number?
A: No, 631,320 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 631320 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 5,261 10,522 15,783 21,044 26,305 31,566 42,088 52,610 63,132 78,915 105,220 126,264 157,830 210,440 315,660 and 631,320, with no remainder.
Since 631,320 cannot be divided by just 1 and 631,320, it is not a prime number.