# Top 10 Most Important Numbers in the World For this top ten article, we are showcasing some of the world's most important and most famous numbers. This list includes the Speed of light constant, Pi, Boltzmann's Constant, Gravitational Constant, The Golden Ratio, Imaginary Unit, Planck's Constant, Euler's Number, The Hubble Constant, and the Avogadro's Constant.

Now have some time read and checkout the 10 listed significant numbers below that really changed and affected the present world that we are living today. Here are your top 10 most important numbers in the world.

Related article : Top 10 Mathematical Equations that Changed the World

TOP : 10
Number : Avogadro's Constant
About : 6.0221415 x 1023 mol-1, defined as the number of constituent particles in one mole of a substance.
Importance : Used to establish relationships between physical constants and properties. Avogadro's Constant

TOP : 9
Number : The Hubble Constant (500 km/s/Mpc or about 160 km/sec per million-light-years)
About : Determines the distance of galaxies from Earth and how fast they are moving away from us.
Importance : Proves that the universe is expanding and is used to estimate the size and age of the universe. The Hubble Constant (500 km/s/Mpc or about 160 km/sec per million-light-years)

TOP : 8
Number : Euler's Constant also Euler's Number (6.0221415 x 1023 mol-1)
About : The exponential growth constant used in finance to determine compound interest.
Importance : Euler's number is critical to the description of decaying relationships, such as Carbon 14 dating. Euler's Constant also Euler's Number (2.7182818284590452353602874713527)

TOP : 7
Number : Planck's Constant (6.62606957 × 10-34 m2 kg/s)
About : Named after Max Planck, a founder of quantum theory.
Importance : The number reflects the size and energy quanta in quantum mechanics, used to help determine the Uncertainty Principle. Planck's Constant (6.62606957 × 10-34 m2 kg/s)

TOP : 6
Number : Imaginary Unit
About : Equaling the square root of -1.
Importance : This number is used to get around the conundrum of there being no square roots of negative numbers. Imaginary Unit

TOP : 5
Number : The Golden Ratio
About : Used in financial technical analysis to predict a market's path.
Importance : Equating to approximately 1.61803, it is observed frequently in nature and is said to provide the mathematical basis of beauty. The Golden Ratio

TOP : 4
Number : Gravitational Constant
About : 6.67384 x 10-11 m3 kg-1 s-2, known as the constant G. Appears in Einstein's theory of relativity.
Importance : It helps calculate the force between two masses and is crucial for engineers. Gravitational Constant

TOP : 3
Number : Boltzmann's Constant
About : Occurs in nearly every statistical formulation of quantum and classical physics.
Importance : Can explain why ice cubs melt in water but are not spontaneously created in tepid water. Boltzmann's Constant

TOP : 2
Number : Pi (3.14159265358979323846264338327950288 or 3.14)
About : Known as Archimedes' constant, after he estimated the 1st calculation of Pi. It is the ratio of the circumference of a circle to its diameter and is used in fundamental principles of the universe. Pi (3.14159265358979323846264338327950288 or 3.14)

TOP : 1
Number : Speed of Light
About : Measured at 299,792,458 meters per second and is in fact the most accurate way to define a meter's length.
Importance : The speed of light has been used in many formulas - most famously in E = mc2.

Data Sources :
• www.youtube.com/watch?v=wISqQRj_AkI
• www.businessinsider.com
• NASA
• Harvard
• The Franklin Institute
• Fox News
• Wolfram
• BBC
Photo Sources :
• www.lrrpublic.cli.det.nsw.edu.au (10th photo)
• www.en.wikipedia.org (9th photo)
• www.dtop10list.com (8th, 7th, 5th, 4th, 3rd, 2nd and 1st photos)
• www.tex.stackexchange.com (6th photo)
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Please be noted that the top 10 that we are including here in our blog are all unofficial rankings unless otherwise noted. Most of the top ten lists are based on Google search results and collected mainly from different blogs and websites around the internet world.

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