Q: Is 128,020 a Prime Number?
A: No, 128,020 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 128020 can be evenly divided by 1 2 4 5 10 20 37 74 148 173 185 346 370 692 740 865 1,730 3,460 6,401 12,802 25,604 32,005 64,010 and 128,020, with no remainder.
Since 128,020 cannot be divided by just 1 and 128,020, it is not a prime number.