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en.wikipedia.org/wiki/20_(number)

20 (twenty) is the natural number following 19 and preceding 21. A group of twenty units may also be referred to as a score.

Numbers, Facts, Figures & Fiction (book cover) · How to order. 20 centime coin. 20. = 2 × 2 × 5. = 2 × 10 = 4 × 5. = 2 + 4 + 6 + 8 = 1 + 3 + 6 + 10. A tetrahedral number - the sum of the first four triangular numbers. A score is another name for 20.

numbermatics.com/n/20

Your guide to the nunber 20, an even composite number composed of two distinct primes. Mathematical info, fun facts and numerical data for STEM, education ...

onlineroulette.org.uk/numbers/twenty

What´s so special about the number 20 in roulette or in anything for that matter. We take a look. ... It´s interesting to note that in the West, you come of age at 21.

www.archimedes-lab.org/numbers/Num13_23.html

Apr 20, 2002 ... Fun facts on numbers (and their peculiar properties), both mathematical and cultural, tantalising problems and anecdotes. The number facts in ...

www.reference.com/math/interesting-number-20-6efdfeab66db3c29

An interesting fact about the number "20" is that it is the maximum number of moves to solve all possible positions of a Rubik's Cube. It is referred to as "God's  ...

www.ridingthebeast.com/numbers/nu20.php

Dec 19, 1998 ... Numerology, meaning and symbolism of the number 20. ... Did the numbers and the fact that I saw it in doubles on my watch mean anything, ...

www.stetson.edu/~efriedma/numbers.html

If you know a distinctive fact about a number not listed here, please e-mail me. ... 20 is the number of rooted trees with 6 vertices. 21 is the smallest number of ...