Q: Is 1,800,800 a Prime Number?
A: No, 1,800,800 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 1800800 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 2,251 4,502 9,004 11,255 18,008 22,510 36,016 45,020 56,275 72,032 90,040 112,550 180,080 225,100 360,160 450,200 900,400 and 1,800,800, with no remainder.
Since 1,800,800 cannot be divided by just 1 and 1,800,800, it is not a prime number.