Q: Is 145,863 a Prime Number?
A: No, 145,863 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 145863 can be evenly divided by 1 3 9 19 57 171 853 2,559 7,677 16,207 48,621 and 145,863, with no remainder.
Since 145,863 cannot be divided by just 1 and 145,863, it is not a prime number.