Q: Is 231,375 a Prime Number?
A: No, 231,375 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 231375 can be evenly divided by 1 3 5 15 25 75 125 375 617 1,851 3,085 9,255 15,425 46,275 77,125 and 231,375, with no remainder.
Since 231,375 cannot be divided by just 1 and 231,375, it is not a prime number.