Q: Is 1,240,343 a Prime Number?
A: No, 1,240,343 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 1240343 can be evenly divided by 1 13 73 949 1,307 16,991 95,411 and 1,240,343, with no remainder.
Since 1,240,343 cannot be divided by just 1 and 1,240,343, it is not a prime number.