Q: Is 420,210 a Prime Number?
A: No, 420,210 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 420210 can be evenly divided by 1 2 3 5 6 7 9 10 14 15 18 21 23 29 30 35 42 45 46 58 63 69 70 87 90 105 115 126 138 145 161 174 203 207 210 230 261 290 315 322 345 406 414 435 483 522 609 630 667 690 805 870 966 1,015 1,035 1,218 1,305 1,334 1,449 1,610 1,827 2,001 2,030 2,070 2,415 2,610 2,898 3,045 3,335 3,654 4,002 4,669 4,830 6,003 6,090 6,670 7,245 9,135 9,338 10,005 12,006 14,007 14,490 18,270 20,010 23,345 28,014 30,015 42,021 46,690 60,030 70,035 84,042 140,070 210,105 and 420,210, with no remainder.
Since 420,210 cannot be divided by just 1 and 420,210, it is not a prime number.