Q: Is 387,975 a Prime Number?
A: No, 387,975 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 387975 can be evenly divided by 1 3 5 7 15 21 25 35 75 105 175 525 739 2,217 3,695 5,173 11,085 15,519 18,475 25,865 55,425 77,595 129,325 and 387,975, with no remainder.
Since 387,975 cannot be divided by just 1 and 387,975, it is not a prime number.