17 February 2018

• 20:5020:50, 17 February 2018 diff hist −2 AMC historical results No edit summary

16 February 2018

• 13:3613:36, 16 February 2018 diff hist +472 N 2018 AMC 12B Problems/Problem 19 Created page with "== Problem == Mary chose an even 4-digit number <math>n</math>. She wrote down all the divisors of <math>n</math> in increasing order from left to right: <math>1,2,..., \frac..."