Letlase la seswai ke lebadi leo letlase la lona elego seswai. Letlase la seswai le šumišwa kudu go dikhomphutha le kgale Amerika. Mabadi a letlase a seswai a ka dirwa go tloga go letlase la pedi ka go hloma makoko a dinomoro tse tharo (go tloga letsogong la goja). Mohlala, letlase la pedi la 73 ke 1001001, ge e dirwa makoko eba (00)1 001 001 — gomme lebapi la letlase la seswai yaba 111. Mohlala wa letlase la lesome 73 10 = 7 × 10 1 + 3 × 10 0 {\displaystyle \mathbf {73} _{10}=\mathbf {7} \times 10^{1}+\mathbf {3} \times 10^{0}} Mohlala wa Letlase la seswa: 111 8 = 1 × 8 2 + 1 × 8 1 + 1 × 8 0 {\displaystyle \mathbf {111} _{8}=\mathbf {1} \times 8^{2}+\mathbf {1} \times 8^{1}+\mathbf {1} \times 8^{0}} Ka go dira dipalo tše, re kgona go bona gore goreng 112 go Letlase la seswa e lekana le 64+8+1 = 73 go letlase la lesome.