Least Common Multiple of 8 and 70 by Listing Multiples

Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248, 256, 264, 272, 280, 288, 296, …
Multiples of 70: 70, 140, 210, 280, …
LCM(8, 70) = 280