Q: Is 199,820 a Prime Number?
A: No, 199,820 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 199820 can be evenly divided by 1 2 4 5 10 20 97 103 194 206 388 412 485 515 970 1,030 1,940 2,060 9,991 19,982 39,964 49,955 99,910 and 199,820, with no remainder.
Since 199,820 cannot be divided by just 1 and 199,820, it is not a prime number.