Q: Is 387,551 a Prime Number?
A: Yes, 387,551 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 387551 can be evenly divided by 1 and 387,551, with no remainder.
Since 387,551 can be divided by just 1 and 387,551, it is a prime number.