Q: Is 505,375 a Prime Number?
A: No, 505,375 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 505375 can be evenly divided by 1 5 13 25 65 125 311 325 1,555 1,625 4,043 7,775 20,215 38,875 101,075 and 505,375, with no remainder.
Since 505,375 cannot be divided by just 1 and 505,375, it is not a prime number.