Q: Is 40,420 a Prime Number?
A: No, 40,420 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 40420 can be evenly divided by 1 2 4 5 10 20 43 47 86 94 172 188 215 235 430 470 860 940 2,021 4,042 8,084 10,105 20,210 and 40,420, with no remainder.
Since 40,420 cannot be divided by just 1 and 40,420, it is not a prime number.