Q: Is 1,600,428 a Prime Number?
A: No, 1,600,428 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 1600428 can be evenly divided by 1 2 3 4 6 12 197 394 591 677 788 1,182 1,354 2,031 2,364 2,708 4,062 8,124 133,369 266,738 400,107 533,476 800,214 and 1,600,428, with no remainder.
Since 1,600,428 cannot be divided by just 1 and 1,600,428, it is not a prime number.