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Two divisibility rules of 7 and why they work
10,870 просмотров • 1 год назад •via X (Twitter)
Комментарии: 4

Roberto Santos1 год назад
You may be interested in this thread I posted It shows several divisibility rules of 7 including yours with a different (more general) proof

Raynor Vliegendhart1 год назад
> just because I don't know that many multiples of seven in the higher hundreds or thousands But Howie, you could just recursively apply the divisibility rule? :)

Paul Morris1 год назад
Excellent job, Howie!

Bill Petrello1 год назад
Way cool!


