Talk:Deceptive numbers: Difference between revisions
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Since the repunit ends in 1 5 can not be a factor of n--[[User:Nigel Galloway|Nigel Galloway]] ([[User talk:Nigel Galloway|talk]]) 11:44, 12 February 2022 (UTC) |
Since the repunit ends in 1 5 can not be a factor of n--[[User:Nigel Galloway|Nigel Galloway]] ([[User talk:Nigel Galloway|talk]]) 11:44, 12 February 2022 (UTC) |
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Since the repunit is odd, 2 cannot be a factor of n. And because the digit sum of the repunit is n - 1, 3 cannot be factor of n. --[[User:Querfeld|Querfeld]] ([[User talk:Querfeld|talk]]) 10:01, 17 September 2023 (UTC) |
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Revision as of 10:02, 17 September 2023
Since the repunit ends in 1 5 can not be a factor of n--Nigel Galloway (talk) 11:44, 12 February 2022 (UTC)
Since the repunit is odd, 2 cannot be a factor of n. And because the digit sum of the repunit is n - 1, 3 cannot be factor of n. --Querfeld (talk) 10:01, 17 September 2023 (UTC)