Q: Is 161,161 a Prime Number?
A: No, 161,161 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 161161 can be evenly divided by 1 7 11 13 23 49 77 91 143 161 253 299 539 637 1,001 1,127 1,771 2,093 3,289 7,007 12,397 14,651 23,023 and 161,161, with no remainder.
Since 161,161 cannot be divided by just 1 and 161,161, it is not a prime number.