Q: Is 200,421 a Prime Number?
A: No, 200,421 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 200421 can be evenly divided by 1 3 9 13 27 39 117 351 571 1,713 5,139 7,423 15,417 22,269 66,807 and 200,421, with no remainder.
Since 200,421 cannot be divided by just 1 and 200,421, it is not a prime number.