Q: Is 2,000,780 a Prime Number?
A: No, 2,000,780 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 2000780 can be evenly divided by 1 2 4 5 10 20 71 142 284 355 710 1,409 1,420 2,818 5,636 7,045 14,090 28,180 100,039 200,078 400,156 500,195 1,000,390 and 2,000,780, with no remainder.
Since 2,000,780 cannot be divided by just 1 and 2,000,780, it is not a prime number.