Fun mathematical facts about today's date! I use a range of math operations and tools including (but not limited to), arithmetic, exponents, geometry, factorials, different number base systems, trigonometry, combinations and permutations. I welcome submissions that add onto today's date or suggest an idea for a future date. Enjoy!
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5/15/25
5 + (1 * 5) = 2 * 5
Also:
5 + 1^5 = |2 - 5|!
Also:
5 = 15 - (2 * 5)
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5/14/25
5 + 1 + 4 = 2 * 5
Also:
5 - 1 + √4 = |2 - 5|!
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5/12/25
5 * 1 * 2 = 2 * 5
Also:
(5 + 1) / 2 = |2 - 5|
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5/11/25
5 * 1 * 1 = √25
Also:
|5 - 11| = |2 - 5|!
Also:
5 + (1 * 1) = |2 - 5|!
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5/6/25
5, 6, 2+5 is an arithmetic sequence with a=5, d=1
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