Q: Is 1,600,404 a Prime Number?
A: No, 1,600,404 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 1600404 can be evenly divided by 1 2 3 4 6 12 13 26 39 52 78 156 10,259 20,518 30,777 41,036 61,554 123,108 133,367 266,734 400,101 533,468 800,202 and 1,600,404, with no remainder.
Since 1,600,404 cannot be divided by just 1 and 1,600,404, it is not a prime number.