Q: Is 142,485 a Prime Number?
A: No, 142,485 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 142485 can be evenly divided by 1 3 5 7 15 21 23 35 59 69 105 115 161 177 295 345 413 483 805 885 1,239 1,357 2,065 2,415 4,071 6,195 6,785 9,499 20,355 28,497 47,495 and 142,485, with no remainder.
Since 142,485 cannot be divided by just 1 and 142,485, it is not a prime number.