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Post AfPha2IEgvvCwDCLGS by [email protected] |
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Post #AfPhZwa5vcdrDrVWGe by [email protected] |
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A math teacher I read here (now I don't remember who) gave a test for divis… |
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Post #AfPhZxAFlBZ720QOcy by [email protected] |
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This test is slightly less useful than some of the other divisibility tests in … |
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Post #AfPha0IW6uxSkVJXQO by [email protected] |
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Of course you can also do x+5y. @mattmcirvin James Grime did a video about this… |
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Post #AfPha2IEgvvCwDCLGS by [email protected] |
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@doctroid @mattmcirvin I always thought it would be fun to write a program that… |
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Post #AfPha2MqPnblAVM1Ro by [email protected] |
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@j2kun @doctroid Hmm, I think you can test for divisibility by 13 by adding 4 t… |
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Post #AfPha2QkBIj9MbB8We by [email protected] |
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@mattmcirvin wrote: "Those mental multiplications are on the edge of still… |
