Q: Is 500,400 a Prime Number?
A: No, 500,400 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 500400 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 139 144 150 180 200 225 240 278 300 360 400 417 450 556 600 695 720 834 900 1,112 1,200 1,251 1,390 1,668 1,800 2,085 2,224 2,502 2,780 3,336 3,475 3,600 4,170 5,004 5,560 6,255 6,672 6,950 8,340 10,008 10,425 11,120 12,510 13,900 16,680 20,016 20,850 25,020 27,800 31,275 33,360 41,700 50,040 55,600 62,550 83,400 100,080 125,100 166,800 250,200 and 500,400, with no remainder.
Since 500,400 cannot be divided by just 1 and 500,400, it is not a prime number.