Q: Is 100,820 a Prime Number?
A: No, 100,820 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 100820 can be evenly divided by 1 2 4 5 10 20 71 142 284 355 710 1,420 5,041 10,082 20,164 25,205 50,410 and 100,820, with no remainder.
Since 100,820 cannot be divided by just 1 and 100,820, it is not a prime number.