Q: Is 243,784 a Prime Number?
A: No, 243,784 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 243784 can be evenly divided by 1 2 4 8 31 62 124 248 983 1,966 3,932 7,864 30,473 60,946 121,892 and 243,784, with no remainder.
Since 243,784 cannot be divided by just 1 and 243,784, it is not a prime number.