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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 2024
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List of all puzzles
Tags
square grids
folding tube maps
volume
division
means
ave
dominos
medians
books
pascal's triangle
binary
median
triangles
coins
rugby
functions
graphs
scales
elections
sum to infinity
regular shapes
crossnumber
squares
numbers grids
number
3d shapes
polynomials
grids
geometric mean
prime numbers
factorials
averages
cube numbers
planes
colouring
sport
quadrilaterals
calculus
logic
unit fractions
pentagons
indices
trigonometry
consecutive numbers
floors
sequences
chess
circles
crossnumbers
shape
time
palindromes
dodecagons
wordplay
money
chocolate
dates
angles
surds
the only crossnumber
cryptic clues
factors
cryptic crossnumbers
matrices
algebra
powers
bases
people maths
multiples
multiplication
neighbours
integers
hexagons
star numbers
parabolas
numbers
irreducible numbers
spheres
cards
remainders
polygons
perimeter
dice
speed
integration
digital products
lines
tangents
tiling
axes
mean
menace
quadratics
percentages
symmetry
sums
cubics
partitions
combinatorics
even numbers
perfect numbers
proportion
arrows
determinants
digital clocks
addition
digits
clocks
games
expansions
triangle numbers
area
2d shapes
tournaments
coordinates
products
crosswords
chalkdust crossnumber
shapes
probabilty
gerrymandering
albgebra
decahedra
odd numbers
range
advent
christmas
geometry
ellipses
probability
doubling
complex numbers
square numbers
geometric means
differentiation
square roots
routes
taxicab geometry
consecutive integers
rectangles
fractions
sets
balancing
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