THE PUZZLET PAGE

List of Puzzlets in Numerical Order

To access individual Puzzlets, follow the  Archives  link.
Number Title


1 An Easy Starter!
2 Make 100 From A PanDigital
3 PanDigital Fractions
4 Palindromic Squares
5 A Cubic Equation
6 Cheque Out This Error!
7 Sum The Cubes of an Integer's Digits
8 Triple Of Numbers
9 Sum of the Factorials of an Integer's Digits
10 PanDigitals Made from Squares
11 A Cylinder and a Sphere
12 Ordered Primes from Composites
13 Pounds, Shillings, and Pence
14 Triplets of 2-digit Integers
15 A Triplet of Sums of Squares
16 Multiples of Numbers from Powers of their Digits
17 Combining Weights
18 Volume of a Tank
19 Prime Number Intervals
20 Counting the Days
21 An Upside-Down PanDigital!
22 Sharing the Gold Coins ...
23 Integer Products by Digit Rotation
24 Triplets of Integers Summing to a Square
25 Fractions - a New Method
26 Palindromic Odometer Readings
27 Integer Division
28 Right-Angled Triangles
29 Squared Denary and Binary Palindromes
30 Coin Combinations
31 Products and Reversed Sums
32 Temperatures in ºC and ºF
33 Digits and Powers
34 A Pandigital Equation
35 Division and Remainder
36 Primes and Cubes
37 A 10-digit Pandigital from 3rd/4th Powers
38 Factorial Sums
39 Equal Products and Sums
40 A Family's Ages
41 Digital Products
42 Pandigital Groups
43 More Right-Angled Triangles
44 Sums of Squares
45 Squares and Cubes
46 One Million
47 Five Weights
48 Manipulating Primes
49 Palindromes and Squares
50 Cubic Suffixes
51 A Trapezium
52 Palindromes from Squares
53 Six-Palindromic Odd Numbers
54 Empty Bottles
55 Squares with Consecutive Parts
56 Proper Divisors
57 Integer Reversals
58 Reversals and Anagrams
59 Denary and Binary Palindromes
60 Fourth Powers
61 Prime Fibonacci Numbers
62 A Scalene Triangle
63 A Diophantine Equation
64 Another Right-Angled Triangle
65 Repeated Digit Product
66 The Kaprekar Process
67 A Return Car Journey
68 How long to fill the Tank?
69 Measuring a Cube
70 A Rectangle and a Square
71 A Quadratic Discriminator
72 Triangular Numbers
73 Anagrammatic Products & 31
74 A run from two squares
75 How Many Ones?
76 Two Triangles
77 Making Primes from Primes
78 UniDigits from Products
79 My House Number
80 A Million in Cubes
81 A Folded Box
82 A Pandigitally Logarithmic Equation
83 Sums of cubes
84 Anagrammatic Products
85 Triangular Numbers Revisited
86 Dimensions of a Box
87 A Matrix of Triangular Numbers
88 Making One Thousand
89 Arithmetic Progressions and Palindromes
90 Primes Both Ways
91 Denary and HexaDecimal Palindromes
92 Anagrams and Factors
93 The Triangle Revisited
94 UniDigits from Squared Triples
95 PrimeRuns
96 Palindromic Waves
97 Circle in a Triangle
98 Derived UniDigit Numbers
99 Divisible Chains
100 Palindromes from Division
101 Numerical Reversals
102 Related Ages
103 Another Scalene Triangle
104 Sum to 10,000
105 Flexible Fractions
106 Selective Deletions
107 Even Digit-Count Palindromic Squares
108 A Sequence of Summed Cubes
109 Concatenated Digits
110 Repeated Digit Sums and 15
111 Squares from Squares
112 A Truncated Triangle
113 Self-Generated Integer Products
114 Proper Divisor Strings
115 Self-Generating Integer Factors
116 Embedded Repeated Digits
117 Self-Generating Squares
118 Twenty Bricks
119 Three Squares
120 Squares from Twin Primes
121 Dartboard Scores
122 A Run from a Product
123 Square Pandigitals
124 An Equation with Digits
125 A Self-Generating Integer from Digit Cubes
126 Matrix Products
127 Playing Card Scores
128 A Palindrome from Adjacent Squares
129 Un-Prefixable Primes
130 A Square from Two UniDigits
131 Primes of Type 4n - 1
132 Self-Generating Integer from Digit Powers
133 Primes from Prime Digits
134 A Square from an Integer and its Reverse
135 Numbers formed from Powers of their own Digits
136 Consecutive Integer Anagrams
137 A Reverse Run from Squares
138 All-Even-Digit Squares
139 Palindromes from Twin Primes
140 A Square from two Runs
141 A 10-digit Pandigital from 2nd/3rd Powers
142 Summing Decimal Digits
143 A Self-Generating Sequence
144 A Reversed Product
145 Self-Generating Sequences Revisited
146 More on Triangular Numbers
147 Denary Integer Reversal in A Lower Base
148 The Index and Length of Factorials
149 Squares from Concatenated Squares
150 Digit Permutation Sums
151 Sub-Number Primes
152 Mutually-Exclusive Squares and Cubes
153 Squares from Rotated Squares
154 3-Digit Integer Reversal for any Base Change
155 Four Consecutive Integers
156 A 3-Digit Formula
157 Pandigitals from Squared Pandigital Parts
158 Primes from Prime Digit Permutations
159 Triangular Numbers from Triplet Products
160 Counting the Months
161 Squares from Reversed Primes
162 Squares with Embedded Roots
163 The Difference of Two Squares
164 Squares and Half-Squares
165 Digit Factorials Revisited
166 Prime Factor Sum
167 Order Digits
168 An Integer's Digits Cubed Revisited
169 A Sequence of Integer Digit Sums
170 Integer Products Again
171 Primes from Prime Digit Rotations
172 A New Sequence
173 Age Reversals
174 A Sequence from Odd, Even & Prime Numbers
175 Digital Clock Segments
176 A Control Panel Problem
177 Temperatures Revisited
178 Palindromes in Denary and Octal
179 Shared Prime Factor Sums
180 Generating Reverse Runs
181 Contiguous Digit Sums
182 Squares from Concatenated Prime Factors
183 A Primitive Right-Angled Triangle
184 A Series of DigiNums
185 A Prime with a Digit Pattern
186 A Run of Consecutive Composites
187 UniDigits Embedded In Factorials
188 Figurate Pentagonals
189 Morse Code & Palindromic Primes
190 Count the Days for Palindromic Primes
191 Contiguous Digit Sum Palindromes
192 UniDigits from 7-Segment Displays
193 A Repeating Series from a PanDigital
194 A Cross of Steel
195 Hexadecimal Product Anagrams
196 A Palindrome from Triangular Numbers
197 Sums of Powers in Alternate Number Bases
198 Counting 1's and 0's in Binary
199 A Sequence from Digit Sums & Products
200 The LSD of Prime Numbers
201 Squares of Sums of Digits
202 Make 1 from a Pandgital
203 Palindromes from Digit Sum Series
204 Prime Runs including Zero
205 Consecutive Integers with same Prime Factor Sum
206 Hexadecimal Spelling
207 Happy Numbers
208 dePolignac Numbers
209 Happy Numbers Revisited
210 Triplets with the same Final Digit Product
211 An Oddly Abundant Number
212 Lucky Numbers
213 Cubed Integers Equal Digit Sums
214 Self-Descriptive Numbers
215 A Square from Concatenated Squares
216Consecutive Primes With Target Intervals
217Prime Factor Sequence
218Achilles Numbers
219Composite to Prime Ratios
220Ellis Numbers
221Prime Factors

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Last Updated: August 22nd, 2010.