Q: Is 15,401 a Prime Number?
A: Yes, 15,401 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 15401 can be evenly divided by 1 and 15,401, with no remainder.
Since 15,401 can be divided by just 1 and 15,401, it is a prime number.