Q: Is 821,401 a Prime Number?
A: No, 821,401 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 821401 can be evenly divided by 1 7 271 433 1,897 3,031 117,343 and 821,401, with no remainder.
Since 821,401 cannot be divided by just 1 and 821,401, it is not a prime number.