Q: Is 842,564 a Prime Number?
A: No, 842,564 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 842564 can be evenly divided by 1 2 4 37 74 148 5,693 11,386 22,772 210,641 421,282 and 842,564, with no remainder.
Since 842,564 cannot be divided by just 1 and 842,564, it is not a prime number.