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15
107
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Relation between some prime numbers and their sum

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#combinatorics #elementary-number-theory #prime-numbers #combinatorial-number-theory
106
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moving on a grid with integer condition

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#discrete-mathematics #combinatorial-number-theory
44
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Finding number of n digit Terminate NUMBERS

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#combinatorics #permutations #combinations #combinatorial-number-theory
339
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Lonely Runner Conjecture proof for $k=3$ runners

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#combinatorics #open-problem #combinatorial-number-theory
208
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Bijective proof that $8+1=9$, or really $3^2-1=2^3$

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#combinatorics #number-theory #representation-theory #combinatorial-proofs #combinatorial-number-theory
648
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Counting solutions of a cubic congruence using Gauss sums

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#number-theory #combinatorial-number-theory
306
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Number theory counting sums of squares modulus

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#number-theory #combinatorial-number-theory
334
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Question about primes in square-free numbers

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#number-theory #analytic-number-theory #combinatorial-number-theory
317
Views

Whitney numbers of the Divisor Lattice

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#combinatorics #combinatorial-number-theory
29
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A Number Theory problem based on selection of sequences

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#number-theory #contest-math #pigeonhole-principle #combinatorial-number-theory
25
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Explanation of a variable in this ~1page paper on arithmetical progressions

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#sequences-and-series #number-theory #arithmetic-progressions #combinatorial-number-theory
50
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Is there a pair of tuples N, M of prime numbers which (a) have the same product, and (b) whose partial products have the same sum?

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#number-theory #elementary-number-theory #prime-numbers #combinatorial-number-theory
58
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Possible alternate proof of Bertrand's postulate.

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#number-theory #analytic-number-theory #combinatorial-number-theory
161
Views

Ranking and unranking combinations with replacement

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#combinatorics #number-systems #combinatorial-number-theory
73
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5 Distinct non-negative integers who's sum is 51. Prove for every solution there is always one sub-set of size 4 who's sum is at least 42.

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#combinatorics #combinatorial-number-theory

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