Q: Is 556,426 a Prime Number?
A: No, 556,426 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 556426 can be evenly divided by 1 2 13 26 21,401 42,802 278,213 and 556,426, with no remainder.
Since 556,426 cannot be divided by just 1 and 556,426, it is not a prime number.