Q: Is 121,203 a Prime Number?
A: No, 121,203 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 121203 can be evenly divided by 1 3 9 27 67 201 603 1,809 4,489 13,467 40,401 and 121,203, with no remainder.
Since 121,203 cannot be divided by just 1 and 121,203, it is not a prime number.