Q: Is 720,420 a Prime Number?
A: No, 720,420 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 720420 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 12,007 24,014 36,021 48,028 60,035 72,042 120,070 144,084 180,105 240,140 360,210 and 720,420, with no remainder.
Since 720,420 cannot be divided by just 1 and 720,420, it is not a prime number.