one quadrillion
1,000,000,000,000,000
999999999999999
1,000,000,000,000,000
99,999,999,999,999 + 999,999,999,999,999 = 1,099,999,999,999,998
Assuming your number line is infinite, then it is: n > 999999999999999 where n = 1000000000000000, 1000000000000001, 1000000000000002, ... and so on. If your number line is finite, then it is: 999999999999999 < n
one quadrillion
1,000,000,000,000,000
999999999999999
1000000000000000
1,000,000,000,000,000
One quadrillion.
99999999999999
The result of multiplying 999999999999999 by 3 is 2,999,999,999,999,997.
If you add one to this number, you get the next whole number.
1,000,000,000,000,000
It is so very simple and quick to get the answer, especially since you can use the calculator that comes with your computer. But since you are not able to do so, the answer is 1,000,000,002,999,999.