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