Q: Is 142,545 a Prime Number?
A: No, 142,545 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 142545 can be evenly divided by 1 3 5 13 15 17 39 43 51 65 85 129 195 215 221 255 559 645 663 731 1,105 1,677 2,193 2,795 3,315 3,655 8,385 9,503 10,965 28,509 47,515 and 142,545, with no remainder.
Since 142,545 cannot be divided by just 1 and 142,545, it is not a prime number.