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Advent calendar 2016
14 December
All 2016 advent puzzles
~
More information
In July, I posted the
Combining Multiples
puzzle.
Today's number is the largest number that cannot be written in the form \(27a+17b\), where \(a\) and \(b\) are positive integers (or 0).
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415
Tags:
numbers
,
factors
,
multiples
,
sums
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Most recent collections
Advent calendar 2023
Advent calendar 2022
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List of all puzzles
Tags
consecutive numbers
triangles
sum to infinity
factorials
integration
cards
time
expansions
3d shapes
coordinates
grids
pascal's triangle
planes
circles
wordplay
square numbers
cryptic crossnumbers
digital clocks
partitions
shape
crossnumber
scales
integers
2d shapes
the only crossnumber
lines
calculus
prime numbers
floors
chess
algebra
regular shapes
crosswords
area
polygons
factors
albgebra
matrices
tournaments
quadrilaterals
hexagons
spheres
digits
quadratics
bases
volume
logic
advent
range
number
geometry
coins
dates
geometric means
axes
money
tangents
fractions
odd numbers
rugby
people maths
routes
perfect numbers
games
sets
star numbers
cube numbers
folding tube maps
taxicab geometry
books
graphs
rectangles
probabilty
balancing
consecutive integers
doubling
geometric mean
sequences
surds
combinatorics
elections
perimeter
gerrymandering
chalkdust crossnumber
division
median
indices
binary
percentages
addition
cryptic clues
palindromes
dominos
complex numbers
speed
squares
ellipses
tiling
parabolas
menace
clocks
averages
dice
products
dodecagons
cubics
symmetry
angles
pentagons
sums
mean
means
irreducible numbers
differentiation
shapes
unit fractions
ave
proportion
square roots
trigonometry
colouring
numbers
triangle numbers
probability
digital products
crossnumbers
sport
multiples
chocolate
functions
remainders
even numbers
arrows
christmas
decahedra
polynomials
determinants
multiplication
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