Q: Is 55,991 a Prime Number?
A: No, 55,991 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 55991 can be evenly divided by 1 13 59 73 767 949 4,307 and 55,991, with no remainder.
Since 55,991 cannot be divided by just 1 and 55,991, it is not a prime number.