Q: Is 145,873 a Prime Number?
A: No, 145,873 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 145873 can be evenly divided by 1 7 13 49 91 229 637 1,603 2,977 11,221 20,839 and 145,873, with no remainder.
Since 145,873 cannot be divided by just 1 and 145,873, it is not a prime number.