Q: Is 191,500 a Prime Number?
A: No, 191,500 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 191500 can be evenly divided by 1 2 4 5 10 20 25 50 100 125 250 383 500 766 1,532 1,915 3,830 7,660 9,575 19,150 38,300 47,875 95,750 and 191,500, with no remainder.
Since 191,500 cannot be divided by just 1 and 191,500, it is not a prime number.