Q: Is 261,523 a Prime Number?
A: Yes, 261,523 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 261523 can be evenly divided by 1 and 261,523, with no remainder.
Since 261,523 can be divided by just 1 and 261,523, it is a prime number.