Q: Is 243,455 a Prime Number?
A: No, 243,455 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 243455 can be evenly divided by 1 5 23 29 73 115 145 365 667 1,679 2,117 3,335 8,395 10,585 48,691 and 243,455, with no remainder.
Since 243,455 cannot be divided by just 1 and 243,455, it is not a prime number.