Q: Is 5,166,421 a Prime Number?
A: No, 5,166,421 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 5166421 can be evenly divided by 1 13 23 37 299 467 481 851 6,071 10,741 11,063 17,279 139,633 224,627 397,417 and 5,166,421, with no remainder.
Since 5,166,421 cannot be divided by just 1 and 5,166,421, it is not a prime number.