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Induced divisibility (Posted on 2021-03-18) Difficulty: 3 of 5
There is some natural number written on the board. An operation is defined as adding to the number its maximal proper divisor. Prove that after some iterations of this operation that we get a number that's divisible by 32020.

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
re: Maybe more straightforwardJer2021-03-20 12:26:28
SolutionMaybe more straightforwardtomarken2021-03-18 15:29:49
Solutionre: a patterntomarken2021-03-18 14:51:04
Some Thoughtsa patternCharlie2021-03-18 12:41:55
Some Thoughtsre(2): Solution (i think)tomarken2021-03-18 11:45:56
re: Solution (i think)Charlie2021-03-18 11:30:59
SolutionSolution (i think)tomarken2021-03-18 10:43:18
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