Q: Is 420 a Prime Number?
A: No, 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 420 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 and 420, with no remainder.
Since 420 cannot be divided by just 1 and 420, it is not a prime number.