Find two whole numbers with the smallest possible difference between them such that when multiplied, they produce 123456780. Python Solution This is nearly too easy using Python brute force; one…
The numbers 407 and 370 have this peculiarity, that they exactly equal the sum of the cubes of their digits. Thus the cube of 4 is 64, the…
Henry Dudeney, 1857-1930, grandson of the locally famous shepherd-turned-mathematician John Dudeney, inherited his grandfather’s love of popular science, became obsessed with chess problems, and went on to become the British…