User contributions
- 15:01, 16 February 2018 (diff | hist) . . (-427) . . 2018 AMC 12B Problems/Problem 19 (same problem redirect) (current)
- 13:35, 16 February 2018 (diff | hist) . . (+507) . . N 2018 AMC 10B Problems/Problem 23 (Created page with "23. How many ordered pairs <math>(a, b)</math> of positive integers satisfy the equation <cmath>a\cdot b + 63 = 20\cdot \text{lcm}(a, b) + 12\cdot\text{gcd}(a,b),</cmath> whe...")
