mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2024

15 December

The number 2268 is equal to the product of a square number (whose last digit is not 0) and the same square number with its digits reversed: 36×63.
What is the smallest three-digit number that is equal to the product of a square number (whose last digit is not 0) and the same square number with its digits reversed?

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026