Q: Is 870,520 a Prime Number?
A: No, 870,520 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 870520 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 3,109 6,218 12,436 15,545 21,763 24,872 31,090 43,526 62,180 87,052 108,815 124,360 174,104 217,630 435,260 and 870,520, with no remainder.
Since 870,520 cannot be divided by just 1 and 870,520, it is not a prime number.