Q: Is 687,480 a Prime Number?
A: No, 687,480 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 687480 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 68 85 102 120 136 170 204 255 337 340 408 510 674 680 1,011 1,020 1,348 1,685 2,022 2,040 2,696 3,370 4,044 5,055 5,729 6,740 8,088 10,110 11,458 13,480 17,187 20,220 22,916 28,645 34,374 40,440 45,832 57,290 68,748 85,935 114,580 137,496 171,870 229,160 343,740 and 687,480, with no remainder.
Since 687,480 cannot be divided by just 1 and 687,480, it is not a prime number.