Q: Is 516,840 a Prime Number?
A: No, 516,840 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 516840 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 59 60 73 118 120 146 177 219 236 292 295 354 365 438 472 584 590 708 730 876 885 1,095 1,180 1,416 1,460 1,752 1,770 2,190 2,360 2,920 3,540 4,307 4,380 7,080 8,614 8,760 12,921 17,228 21,535 25,842 34,456 43,070 51,684 64,605 86,140 103,368 129,210 172,280 258,420 and 516,840, with no remainder.
Since 516,840 cannot be divided by just 1 and 516,840, it is not a prime number.