Pages that link to "Book:Richard K. Guy/Unsolved Problems in Number Theory/Second Edition"
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The following pages link to Book:Richard K. Guy/Unsolved Problems in Number Theory/Second Edition:
Displayed 50 items.
- Are All Perfect Numbers Even? (← links)
- Erdős-Straus Conjecture (← links)
- Erdős-Straus Conjecture/Sierpiński Variant (← links)
- Consecutive Integers with Same Divisor Sum (← links)
- Sum of 4 Unit Fractions that equals 1 (← links)
- Sum of 5 Unit Fractions that equals 1 (← links)
- Sum of 6 Unit Fractions that equals 1 (← links)
- Do Quasiperfect Numbers Exist? (← links)
- Sum of Sequence of Alternating Positive and Negative Factorials being Prime (← links)
- Prime to Own Power minus 1 over Prime minus 1 being Prime (← links)
- Smallest Integer not Sum of Two Ulam Numbers (← links)
- Sum of Squares of Divisors of 24 and 26 are Equal (← links)
- Numbers Partitioned into Six Hexagonal Numbers (← links)
- Smallest Positive Integer not of form +-4 mod 9 not representable as Sum of Three Cubes (← links)
- Power of 2 is Difference between Two Powers (← links)
- Non-Integral Value of Göbel's Sequence (← links)
- Non-Integral Value of 3-Göbel Sequence (← links)
- Pair of Ulam Numbers differing by One (← links)
- Square Pyramidal and Triangular Numbers (← links)
- Triple of Triangular Numbers whose Pairwise Sums are Triangular (← links)
- Triple of Triangular Numbers whose Pairwise Sums are Triangular/Historical Note (← links)
- Values of n for which Integer Solutions to n = x^3 + y^3 + 2 z^3 are Unknown (← links)
- Integers for which Divisor Sum of Phi equals Divisor Sum (← links)
- Integers such that Difference with Power of 2 is always Prime (← links)
- Smallest Number which is Sum of 4 Triples with Equal Products (← links)
- Multiply Perfect Number of Order 8 (← links)
- Multiply Perfect Number of Order 8/Mistake (← links)
- Numbers whose Difference equals Difference between Cube and Seventh Power (← links)
- Numbers whose Difference equals Difference between Cube and Seventh Power/Mistake (← links)
- Triangles with Integer Area and Integer Sides in Arithmetical Sequence/Mistake (← links)
- 138 (← links)
- Prime Magic Square/Examples/Order 3/Smallest with Consecutive Primes (← links)
- Representation of 1 as Sum of n Unit Fractions (← links)
- Sum of 3 Unit Fractions that equals 1 (← links)
- Smallest Triplet of Integers whose Product with Divisor Count are Equal (← links)
- Pairs of Integers whose Product with Divisor Count are Equal (← links)
- Numbers Expressible as Sum of Five Distinct Squares (← links)
- Amicable Pair with Smallest Common Prime Factor 5 (← links)
- Amicable Triplet/Examples/1980-2016-2556 (← links)
- Largest Prime Factor of n squared plus 1 (← links)
- Solution of Ljunggren Equation (← links)
- Aliquot Sequence/Examples/138 (← links)
- Aliquot Sequence/Examples/138/Historical Note (← links)
- Sum of 4 Consecutive Binomial Coefficients forming Square (← links)
- Sum of 4 Consecutive Binomial Coefficients forming Square/Mistake (← links)
- 1105 as Sum of Two Squares (← links)
- Numbers Not Expressible as Sum of no more than 5 Squares of Composite Numbers (← links)
- 17 Consecutive Integers each with Common Factor with Product of other 16 (← links)
- Sum of Two Rational 4th Powers but not Two Integer 4th Powers (← links)
- Volume of Smallest Rational Tetrahedron (← links)