Q: Is 630,420 a Prime Number?
A: No, 630,420 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 630420 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 79 84 95 105 114 133 140 158 190 210 228 237 266 285 316 380 395 399 420 474 532 553 570 665 790 798 948 1,106 1,140 1,185 1,330 1,501 1,580 1,596 1,659 1,995 2,212 2,370 2,660 2,765 3,002 3,318 3,990 4,503 4,740 5,530 6,004 6,636 7,505 7,980 8,295 9,006 10,507 11,060 15,010 16,590 18,012 21,014 22,515 30,020 31,521 33,180 42,028 45,030 52,535 63,042 90,060 105,070 126,084 157,605 210,140 315,210 and 630,420, with no remainder.
Since 630,420 cannot be divided by just 1 and 630,420, it is not a prime number.