Q: Is 842,020 a Prime Number?
A: No, 842,020 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 842020 can be evenly divided by 1 2 4 5 10 20 42,101 84,202 168,404 210,505 421,010 and 842,020, with no remainder.
Since 842,020 cannot be divided by just 1 and 842,020, it is not a prime number.