Q: Is 343,540 a Prime Number?
A: No, 343,540 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 343540 can be evenly divided by 1 2 4 5 10 20 89 178 193 356 386 445 772 890 965 1,780 1,930 3,860 17,177 34,354 68,708 85,885 171,770 and 343,540, with no remainder.
Since 343,540 cannot be divided by just 1 and 343,540, it is not a prime number.