Q: Is 155,500 a Prime Number?
A: No, 155,500 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 155500 can be evenly divided by 1 2 4 5 10 20 25 50 100 125 250 311 500 622 1,244 1,555 3,110 6,220 7,775 15,550 31,100 38,875 77,750 and 155,500, with no remainder.
Since 155,500 cannot be divided by just 1 and 155,500, it is not a prime number.