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