mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
subscribe
Loading image...
Advent calendar 2015
22 December
All 2015 advent puzzles
~
More information
What is the largest number which cannot be written as the sum of distinct squares?
Show answer
Hide answer
128
Tags:
numbers
,
square numbers
Archive
Show me a random puzzle
Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
digital clocks
clocks
expansions
cards
polygons
angles
graphs
spheres
dominos
factors
integration
consecutive numbers
lines
proportion
balancing
partitions
circles
quadrilaterals
ave
division
chocolate
planes
games
parabolas
digital products
numbers grids
binary
geometry
scales
surds
determinants
tournaments
differentiation
range
integers
shapes
matrices
doubling
squares
multiples
chess
menace
sums
shape
averages
chalkdust crossnumber
rectangles
unit fractions
albgebra
multiplication
remainders
decahedra
fractions
consecutive integers
volume
christmas
axes
time
the only crossnumber
ellipses
sport
sum to infinity
even numbers
arrows
complex numbers
logic
numbers
medians
median
factorials
combinatorics
polynomials
speed
tiling
neighbours
pentagons
pascal's triangle
cryptic crossnumbers
hexagons
folding tube maps
star numbers
probabilty
area
prime numbers
geometric mean
probability
odd numbers
tangents
square roots
2d shapes
digits
mean
percentages
colouring
taxicab geometry
bases
routes
dodecagons
addition
floors
trigonometry
palindromes
regular shapes
square numbers
calculus
people maths
powers
money
geometric means
sequences
coins
perfect numbers
algebra
dice
triangle numbers
products
sets
means
advent
rugby
crossnumbers
perimeter
cube numbers
gerrymandering
cubics
wordplay
books
cryptic clues
triangles
symmetry
3d shapes
crosswords
square grids
indices
irreducible numbers
number
elections
grids
dates
coordinates
quadratics
functions
Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
2d shapes
christmas
ave
money
taxicab geometry
square grids
tiling
calculus
geometric mean
lines
proportion
rugby
consecutive integers
quadrilaterals
number
dates
logic
chocolate
addition
menace
balancing
odd numbers
tournaments
consecutive numbers
fractions
hexagons
clocks
even numbers
surds
books
sport
speed
albgebra
quadratics
mean
matrices
wordplay
people maths
area
sums
differentiation
powers
scales
routes
colouring
division
trigonometry
grids
3d shapes
floors
polynomials
sets
geometry
perimeter
chalkdust crossnumber
crossnumbers
shape
bases
medians
numbers
unit fractions
combinatorics
digital products
the only crossnumber
rectangles
tangents
squares
ellipses
cryptic clues
integration
decahedra
circles
elections
range
multiplication
triangle numbers
graphs
volume
sum to infinity
remainders
regular shapes
digits
partitions
expansions
irreducible numbers
determinants
pentagons
time
geometric means
chess
palindromes
complex numbers
symmetry
folding tube maps
pascal's triangle
star numbers
cryptic crossnumbers
sequences
means
dominos
angles
median
spheres
coins
crosswords
numbers grids
advent
cubics
factors
dodecagons
parabolas
algebra
averages
shapes
arrows
planes
triangles
perfect numbers
products
axes
probabilty
neighbours
cards
integers
indices
gerrymandering
functions
multiples
factorials
games
polygons
binary
percentages
prime numbers
square numbers
doubling
probability
digital clocks
coordinates
dice
cube numbers
square roots
© Matthew Scroggs 2012–2025