Q: Is 155,878 a Prime Number?
A: No, 155,878 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 155878 can be evenly divided by 1 2 59 118 1,321 2,642 77,939 and 155,878, with no remainder.
Since 155,878 cannot be divided by just 1 and 155,878, it is not a prime number.