Q: Is 231,780 a Prime Number?
A: No, 231,780 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 231780 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 3,863 7,726 11,589 15,452 19,315 23,178 38,630 46,356 57,945 77,260 115,890 and 231,780, with no remainder.
Since 231,780 cannot be divided by just 1 and 231,780, it is not a prime number.