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9177771

Anonymous Mon Sep 18 21:29:57 2017 No.9177771 [Reply] [Original]

Prove that any number composed of the digits 0 1 and 5 is a multiple of 3.

You sold be able to solve this.

>>	Anonymous Mon Sep 18 21:32:00 2017 No.9177773 counterexample: 1055

>>	Anonymous Mon Sep 18 22:27:47 2017 No.9177844 0015

>>	Anonymous Mon Sep 18 22:28:21 2017 No.9177846 1500

>>	Anonymous Mon Sep 18 22:33:39 2017 No.9177854 >>9177773

>>	Anonymous Mon Sep 18 23:24:25 2017 No.9177921 >>9177771 Any number whose sum of its component digits can be divisible by three, is itself divisible by three. 0+1+5 = 6, 6 is divisible by three, it doesn't matter in which order the digits appear.