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Mathematics. 15 as the difference of two positive squares (in orange). 15 is: The eighth composite number and the sixth semiprime and the first odd and fourth discrete semiprime; [1] its proper divisors are 1, 3, and 5, so the first of the form (3.q), [2] where q is a higher prime.
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Paulina Sanchez. Joined Wikipedia 2014. For Paulina,...
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- 15 (number) - Simple English Wikipedia, the free encyclopedia
The Simple English Wiktionary has a definition for: fifteen....
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Fifteen or 15 may refer to: 15 (number), the natural number...
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Jan 9, 2024 · January | 15. Choose another date. 2001. Wikipedia launches. Less than a year after the unsuccessful launch of Nupedia —an online free encyclopedia—its successor, Wikipedia, goes live on...
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