Q: Is 2,643,428 a Prime Number?
A: No, 2,643,428 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 2643428 can be evenly divided by 1 2 4 37 53 74 106 148 212 337 674 1,348 1,961 3,922 7,844 12,469 17,861 24,938 35,722 49,876 71,444 660,857 1,321,714 and 2,643,428, with no remainder.
Since 2,643,428 cannot be divided by just 1 and 2,643,428, it is not a prime number.