Category

Egyptian fractions

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ancient Egyptian symbol of protection, royal power and good health

Rhind Mathematical Papyrus

example of ancient Egyptian mathematics

Moscow Mathematical Papyrus

ancient Egyptian mathematical manuscript

Egyptian fraction

finite sum of distinct unit fractions

Sylvester's sequence

integer sequence in which each member of the sequence is the product of the previous members, plus one

Erdős–Straus conjecture

unproven statement in number theory

practical number

a number such that it and all smaller numbers may be represented as sums of its divisors

Ancient Egyptian multiplication

multiplication algorithm

Engel expansion

decomposition of a positive real number into a series of unit fractions, each an integer multiple of the next one

Znám's problem

the problem of finding sets of integers in which each is a proper divisor of one plus the product of the others

Erdős–Graham problem

Theorem on the existence of finite sets of positive integers >1 whose inverses sum to 1

Egyptian Mathematical Leather Roll

ancient Egyptian text

Greedy algorithm for Egyptian fractions

simple method for finding Egyptian fractions

Reisner Papyrus

related to egyptology and George Andrew Reisner

primary pseudoperfect number