Question
Write 42751 in scientific notation.
Answer
$$ 42751 = 4.2751\cdot 10^{4} $$
Explanation
Step 1: Since 42751 do not have a decimal point, we will add one at the end of the number 42751.
42751.
Step 2: 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).
4.2751.
Step 3: We moved the decimal point 4 spaces to the right. Therefore, the exponent on base 10 will be positive 4.Now we know that the:
Mantissa = 4.2751
Exponent = 4
So, the solution is:
$$42751 = \color{blue}{ 4.2751} \cdot 10^{ \color{red}{ 4 }}$$This page was created using
Scientific notation Calculator