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20 ( twenty; Roman numeral XX) is the natural number following 19 and preceding 21. A group of twenty units may be referred to as a score. [1] [2] Mathematics. Integer properties. Twenty is a pronic number, as it is the product of consecutive integers, namely 4 and 5. [3] .
- 21 (Number)
21 is also the first non-trivial octagonal number. It is the...
- American TV Program
20/20 (stylized as 2020) is an American television...
- 21 (Number)
This Friday marks 20 years of Wikipedia. Join us for a special #Wikipedia20 event that day, celebrating the idea that knowledge can be shared by and open to everyone
Jan 9, 2021 · On January 15th Wikipedia—“the free encyclopedia that anyone can edit”—will celebrate its 20th anniversary. It will do so as the biggest and most-read reference work ever. Wikipedia hosts...
Jan 14, 2021 · Wikipedia's 20, but how credible is it? Uta Steinwehr | Mikhail Bushuev. 01/14/2021. The user-compiled encyclopedia has helped students and sometimes horrified their teachers. So how accurate...
Jan 14, 2021 · 20.wikipedia.org launches to commemorate Wikipedia’s birthday, look back at the past 20 years, and meet the humans behind the platform. 14 January 2021 — Wikipedia, the world’s largest free online encyclopedia, turns 20 years old on 15 January. This birthday commemorates two decades of global efforts to support free knowledge, open ...
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20 (number) - Simple English Wikipedia, the free encyclopedia. Twenty is the number that is after nineteen and before twenty-one . The prime factors of twenty are 2 and 5. (2 * 2 * 5 = 20) Its factors are: 1, 2, 4, 5, 10, and 20. As the sum of its factors is more than itself (i.e. 22), it can be referred to as an abundant number .
