Q: Is 861,877 a Prime Number?
A: Yes, 861,877 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 861877 can be evenly divided by 1 and 861,877, with no remainder.
Since 861,877 can be divided by just 1 and 861,877, it is a prime number.