Q: Is 163,720 a Prime Number?
A: No, 163,720 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 163720 can be evenly divided by 1 2 4 5 8 10 20 40 4,093 8,186 16,372 20,465 32,744 40,930 81,860 and 163,720, with no remainder.
Since 163,720 cannot be divided by just 1 and 163,720, it is not a prime number.