Q: Is 857,080 a Prime Number?
A: No, 857,080 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 857080 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 3,061 6,122 12,244 15,305 21,427 24,488 30,610 42,854 61,220 85,708 107,135 122,440 171,416 214,270 428,540 and 857,080, with no remainder.
Since 857,080 cannot be divided by just 1 and 857,080, it is not a prime number.