Q: Is 243,920 a Prime Number?
A: No, 243,920 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 243920 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 3,049 6,098 12,196 15,245 24,392 30,490 48,784 60,980 121,960 and 243,920, with no remainder.
Since 243,920 cannot be divided by just 1 and 243,920, it is not a prime number.