Least Common Multiple of 81 and 84 by Listing Multiples

Multiples of 81: 81, 162, 243, 324, 405, 486, 567, 648, 729, 810, 891, 972, 1,053, 1,134, 1,215, 1,296, 1,377, 1,458, 1,539, 1,620, 1,701, 1,782, 1,863, 1,944, 2,025, 2,106, 2,187, 2,268, 2,349, 2,430, …
Multiples of 84: 84, 168, 252, 336, 420, 504, 588, 672, 756, 840, 924, 1,008, 1,092, 1,176, 1,260, 1,344, 1,428, 1,512, 1,596, 1,680, 1,764, 1,848, 1,932, 2,016, 2,100, 2,184, 2,268, …
LCM(81, 84) = 2,268