Q: Is 82,420 a Prime Number?
A: No, 82,420 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 82420 can be evenly divided by 1 2 4 5 10 13 20 26 52 65 130 260 317 634 1,268 1,585 3,170 4,121 6,340 8,242 16,484 20,605 41,210 and 82,420, with no remainder.
Since 82,420 cannot be divided by just 1 and 82,420, it is not a prime number.