Q: Is 243,108 a Prime Number?
A: No, 243,108 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 243108 can be evenly divided by 1 2 3 4 6 9 12 18 27 36 54 108 2,251 4,502 6,753 9,004 13,506 20,259 27,012 40,518 60,777 81,036 121,554 and 243,108, with no remainder.
Since 243,108 cannot be divided by just 1 and 243,108, it is not a prime number.