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The Most Mathematically Perfect Day of the Year

Whether you write it 6/28 or 28/6, today is a perfect day. A perfect number is a number that is the sum of its factors besides itself, and 6 (1+2+3) and 28 (1+2+4+7+14) are the first two perfect numbers.

June 28, 2014 — Evelyn Lamb
Collective Nouns for Mathematicians

Collective Nouns for Mathematicians

Every once in a while I stumble on an interesting collective noun, usually for animals: a parliament of owls, a knot of toads, an exaltation of larks.

January 14, 2014 — Evelyn Lamb

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