Q: Is 331,125 a Prime Number?
A: No, 331,125 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 331125 can be evenly divided by 1 3 5 15 25 75 125 375 883 2,649 4,415 13,245 22,075 66,225 110,375 and 331,125, with no remainder.
Since 331,125 cannot be divided by just 1 and 331,125, it is not a prime number.