Q: Is 100,720 a Prime Number?
A: No, 100,720 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 100720 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 1,259 2,518 5,036 6,295 10,072 12,590 20,144 25,180 50,360 and 100,720, with no remainder.
Since 100,720 cannot be divided by just 1 and 100,720, it is not a prime number.