Q: Is 420,080 a Prime Number?
A: No, 420,080 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 420080 can be evenly divided by 1 2 4 5 8 10 16 20 40 59 80 89 118 178 236 295 356 445 472 590 712 890 944 1,180 1,424 1,780 2,360 3,560 4,720 5,251 7,120 10,502 21,004 26,255 42,008 52,510 84,016 105,020 210,040 and 420,080, with no remainder.
Since 420,080 cannot be divided by just 1 and 420,080, it is not a prime number.