Q: Is 178,000 a Prime Number?
A: No, 178,000 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 178000 can be evenly divided by 1 2 4 5 8 10 16 20 25 40 50 80 89 100 125 178 200 250 356 400 445 500 712 890 1,000 1,424 1,780 2,000 2,225 3,560 4,450 7,120 8,900 11,125 17,800 22,250 35,600 44,500 89,000 and 178,000, with no remainder.
Since 178,000 cannot be divided by just 1 and 178,000, it is not a prime number.