Q: Is 315,420 a Prime Number?
A: No, 315,420 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 315420 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 751 1,502 2,253 3,004 3,755 4,506 5,257 7,510 9,012 10,514 11,265 15,020 15,771 21,028 22,530 26,285 31,542 45,060 52,570 63,084 78,855 105,140 157,710 and 315,420, with no remainder.
Since 315,420 cannot be divided by just 1 and 315,420, it is not a prime number.