One hundred factorial

How many zeros does \(100!\) end with?

Show answer & extension

If you enjoyed this puzzle, check out Sunday Afternoon Maths XL,
puzzles about multiplication, or a random puzzle.


Show me a random puzzle
 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


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020