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Advent calendar 2018
4 December
All 2018 advent puzzles
~
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Today's number is the number of 0s that 611! (611×610×...×2×1) ends in.
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By the same method used to solve
this puzzle
, the answer if
150
.
Tags:
numbers
,
digits
,
factorials
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Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2019
Sunday Afternoon Maths LXVII
Coloured weights
Not Roman numerals
Advent calendar 2018
Sunday Afternoon Maths LXVI
Cryptic crossnumber #2
List of all puzzles
Tags
factorials
grids
shapes
arrows
perfect numbers
cryptic clues
polygons
dice
trigonometry
remainders
coins
complex numbers
numbers
triangle numbers
crossnumber
colouring
regular shapes
cards
graphs
unit fractions
coordinates
scales
geometry
2d shapes
proportion
christmas
sport
square roots
rugby
percentages
range
differentiation
multiplication
gerrymandering
dominos
balancing
people maths
cryptic crossnumbers
sequences
elections
planes
rectangles
circles
factors
palindromes
digits
volume
quadratics
triangles
irreducible numbers
chalkdust crossnumber
area
parabolas
algebra
mean
crossnumbers
menace
clocks
chess
surds
fractions
speed
advent
star numbers
probabilty
square numbers
bases
perimeter
angles
dodecagons
division
tiling
calculus
partitions
pascal's triangle
wordplay
prime numbers
ellipses
indices
chocolate
the only crossnumber
doubling
products
multiples
number
median
cube numbers
shape
money
routes
functions
books
addition
squares
logic
sums
symmetry
ave
sum to infinity
floors
hexagons
taxicab geometry
games
dates
odd numbers
digital clocks
time
crosswords
3d shapes
spheres
averages
means
folding tube maps
integration
integers
probability
lines
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