Q: Is 210,420 a Prime Number?
A: No, 210,420 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 210420 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 167 180 210 252 315 334 420 501 630 668 835 1,002 1,169 1,260 1,503 1,670 2,004 2,338 2,505 3,006 3,340 3,507 4,676 5,010 5,845 6,012 7,014 7,515 10,020 10,521 11,690 14,028 15,030 17,535 21,042 23,380 30,060 35,070 42,084 52,605 70,140 105,210 and 210,420, with no remainder.
Since 210,420 cannot be divided by just 1 and 210,420, it is not a prime number.