Q: Is 231,231 a Prime Number?
A: No, 231,231 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 231231 can be evenly divided by 1 3 7 11 13 21 33 39 49 77 91 121 143 147 231 273 363 429 539 637 847 1,001 1,573 1,617 1,911 2,541 3,003 4,719 5,929 7,007 11,011 17,787 21,021 33,033 77,077 and 231,231, with no remainder.
Since 231,231 cannot be divided by just 1 and 231,231, it is not a prime number.