Q: Is 515,500 a Prime Number?
A: No, 515,500 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 515500 can be evenly divided by 1 2 4 5 10 20 25 50 100 125 250 500 1,031 2,062 4,124 5,155 10,310 20,620 25,775 51,550 103,100 128,875 257,750 and 515,500, with no remainder.
Since 515,500 cannot be divided by just 1 and 515,500, it is not a prime number.