Q: Is 500,000 a Prime Number?
A: No, 500,000 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 500000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1,000 1,250 2,000 2,500 3,125 4,000 5,000 6,250 10,000 12,500 15,625 20,000 25,000 31,250 50,000 62,500 100,000 125,000 250,000 and 500,000, with no remainder.
Since 500,000 cannot be divided by just 1 and 500,000, it is not a prime number.