Q: Is 145,275 a Prime Number?
A: No, 145,275 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 145275 can be evenly divided by 1 3 5 13 15 25 39 65 75 149 195 325 447 745 975 1,937 2,235 3,725 5,811 9,685 11,175 29,055 48,425 and 145,275, with no remainder.
Since 145,275 cannot be divided by just 1 and 145,275, it is not a prime number.