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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
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numbers
,
factors
,
multiples
,
sums
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Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
elections
dominos
hexagons
coordinates
sequences
star numbers
tangents
tiling
the only crossnumber
square roots
balancing
fractions
bases
tournaments
colouring
mean
integers
taxicab geometry
albgebra
indices
books
probability
number
geometry
menace
gerrymandering
crossnumbers
prime numbers
probabilty
complex numbers
irreducible numbers
percentages
square numbers
squares
functions
averages
triangle numbers
numbers
decahedra
consecutive numbers
planes
multiples
remainders
dice
axes
chalkdust crossnumber
time
wordplay
pentagons
graphs
palindromes
chocolate
integration
crossnumber
means
circles
volume
perimeter
games
factors
angles
sum to infinity
differentiation
determinants
cryptic clues
median
partitions
trigonometry
dates
area
3d shapes
binary
sets
spheres
clocks
surds
ellipses
parabolas
expansions
odd numbers
digital products
people maths
shapes
matrices
unit fractions
digits
lines
quadrilaterals
crosswords
addition
combinatorics
routes
triangles
cubics
polynomials
perfect numbers
division
regular shapes
2d shapes
digital clocks
consecutive integers
ave
range
pascal's triangle
grids
floors
scales
algebra
geometric mean
proportion
advent
symmetry
chess
folding tube maps
sport
cryptic crossnumbers
money
rugby
even numbers
doubling
arrows
cards
cube numbers
shape
speed
dodecagons
geometric means
products
sums
factorials
rectangles
logic
polygons
coins
multiplication
quadratics
christmas
calculus
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