Q: Is 521,213 a Prime Number?
A: No, 521,213 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 521213 can be evenly divided by 1 7 11 49 77 539 967 6,769 10,637 47,383 74,459 and 521,213, with no remainder.
Since 521,213 cannot be divided by just 1 and 521,213, it is not a prime number.