Q: Is 243,240 a Prime Number?
A: No, 243,240 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 243240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 2,027 4,054 6,081 8,108 10,135 12,162 16,216 20,270 24,324 30,405 40,540 48,648 60,810 81,080 121,620 and 243,240, with no remainder.
Since 243,240 cannot be divided by just 1 and 243,240, it is not a prime number.