Q: Is 42,100 a Prime Number?
A: No, 42,100 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 42100 can be evenly divided by 1 2 4 5 10 20 25 50 100 421 842 1,684 2,105 4,210 8,420 10,525 21,050 and 42,100, with no remainder.
Since 42,100 cannot be divided by just 1 and 42,100, it is not a prime number.