Q: Is 320,125 a Prime Number?
A: No, 320,125 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 320125 can be evenly divided by 1 5 13 25 65 125 197 325 985 1,625 2,561 4,925 12,805 24,625 64,025 and 320,125, with no remainder.
Since 320,125 cannot be divided by just 1 and 320,125, it is not a prime number.