Q: Is 142,245 a Prime Number?
A: No, 142,245 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 142245 can be evenly divided by 1 3 5 9 15 29 45 87 109 145 261 327 435 545 981 1,305 1,635 3,161 4,905 9,483 15,805 28,449 47,415 and 142,245, with no remainder.
Since 142,245 cannot be divided by just 1 and 142,245, it is not a prime number.