Q: Is 145,000 a Prime Number?
A: No, 145,000 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 145000 can be evenly divided by 1 2 4 5 8 10 20 25 29 40 50 58 100 116 125 145 200 232 250 290 500 580 625 725 1,000 1,160 1,250 1,450 2,500 2,900 3,625 5,000 5,800 7,250 14,500 18,125 29,000 36,250 72,500 and 145,000, with no remainder.
Since 145,000 cannot be divided by just 1 and 145,000, it is not a prime number.