Q: Is 243,140 a Prime Number?
A: No, 243,140 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 243140 can be evenly divided by 1 2 4 5 10 20 12,157 24,314 48,628 60,785 121,570 and 243,140, with no remainder.
Since 243,140 cannot be divided by just 1 and 243,140, it is not a prime number.