Q: Is 19,902 a Prime Number?
A: No, 19,902 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 19902 can be evenly divided by 1 2 3 6 31 62 93 107 186 214 321 642 3,317 6,634 9,951 and 19,902, with no remainder.
Since 19,902 cannot be divided by just 1 and 19,902, it is not a prime number.