Q: Is 43,623 a Prime Number?
A: No, 43,623 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 43623 can be evenly divided by 1 3 9 37 111 131 333 393 1,179 4,847 14,541 and 43,623, with no remainder.
Since 43,623 cannot be divided by just 1 and 43,623, it is not a prime number.