Q: Is 1,205,500 a Prime Number?
A: No, 1,205,500 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 1205500 can be evenly divided by 1 2 4 5 10 20 25 50 100 125 250 500 2,411 4,822 9,644 12,055 24,110 48,220 60,275 120,550 241,100 301,375 602,750 and 1,205,500, with no remainder.
Since 1,205,500 cannot be divided by just 1 and 1,205,500, it is not a prime number.