What is 1.56*10^{-20}*85 ?

The solution to 1.56*10^{-20}*85 is (663)/(5^{21)*1048576}

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simplify 1.5610^{-20}85

simplify

1.56 \cdot 1 0^{- 20} \cdot 85

\frac{663}{5 ^{21} \cdot 1048576}

Decimal Notation

1.326 E - 18

Solution steps

1.56 \cdot 1 0^{- 20} \cdot 85

Multiply the numbers:

1.56 \cdot 85 = 132.6

= 132.6 \cdot 1 0^{- 20}

= 1 0^{- 20} \cdot 132.6

Apply exponent rule:

a^{- b} = \frac{1}{a ^{b}}

1 0^{- 20} = \frac{1}{1 0 ^{20}}

= \frac{1}{1 0 ^{20}} \cdot 132.6

\frac{1}{1 0 ^{20}} \cdot 132.6 = \frac{132.6}{1 0 ^{20}}

= \frac{132.6}{1 0 ^{20}}

\frac{132.6}{1 0 ^{20}} = \frac{1326}{10 \cdot 1 0 ^{20}}

= \frac{1326}{10 \cdot 1 0 ^{20}}

10 \cdot 1 0^{20} = 1 0^{21}

= \frac{1326}{1 0 ^{21}}

Factor the number:

1326 = 2 \cdot 663

= \frac{2 \cdot 663}{1 0 ^{21}}

Factor

1 0^{21} : 2^{21} \cdot 5^{21}

= \frac{2 \cdot 663}{2 ^{21} \cdot 5 ^{21}}

\frac{2}{2 ^{21}} = \frac{1}{2 ^{20}}

= \frac{663}{2 ^{20} \cdot 5 ^{21}}

2^{20} = 1048576

= \frac{663}{5 ^{21} \cdot 1048576}

(8 x^{3}) (3 z^{10}) (6 z^{4})

3 a (5 a^{2} b) (6 a b^{3})

e^{(- 2.77)}

365.25 \cdot 1 0^{- 3}

\frac{π ^{2}}{a ^{2}}

What is 1.56*10^{-20}*85 ?
The solution to 1.56*10^{-20}*85 is (663)/(5^{21)*1048576}