Q: Is 159,777 a Prime Number?
A: No, 159,777 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 159777 can be evenly divided by 1 3 9 41 123 369 433 1,299 3,897 17,753 53,259 and 159,777, with no remainder.
Since 159,777 cannot be divided by just 1 and 159,777, it is not a prime number.