Let b1,b2,...bn be the integers between 1 and m that are relative prime to m (including 1), and let B = b1*b2*...*bn be their product. The quantity B came up during the proof of euler formula. a^n = 1 (mod m), where n is number of integers between 1 and m that relative prime to m.(adsbygoogle = window.adsbygoogle || []).push({});

How can I show B=1 (mod m ) or B = -1(mod m)?

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# Question from the proof in euler's forumla

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