Question
Write 0.00000000000686743 in scientific notation.
Answer
$$ 0.00000000000686743 = 6.86743\cdot 10^{-12} $$
Explanation
Step 1: Move the decimal point from its current position (the black dot) to a position immediately to the right of the first nonzero digit (the red dot).
0.000000000006.86743
Step 2: We moved the decimal point 12 spaces to the left. Therefore, the exponent on base 10 will be negative 12.Now we know that the:
Mantissa = 6.86743
Exponent = -12
So, the solution is:
$$0.00000000000686743 = \color{blue}{ 6.86743} \cdot 10^{ \color{red}{ -12 }}$$This page was created using
Scientific notation Calculator