Q: Is 145,575 a Prime Number?
A: No, 145,575 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 145575 can be evenly divided by 1 3 5 9 15 25 45 75 225 647 1,941 3,235 5,823 9,705 16,175 29,115 48,525 and 145,575, with no remainder.
Since 145,575 cannot be divided by just 1 and 145,575, it is not a prime number.