Q: Is 261,021 a Prime Number?
A: No, 261,021 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 261021 can be evenly divided by 1 3 167 501 521 1,563 87,007 and 261,021, with no remainder.
Since 261,021 cannot be divided by just 1 and 261,021, it is not a prime number.