▁in ▁the ▁ob sole te ▁ 5 6 ▁bit ▁DES ▁symmetric ▁ci pher . ▁▁ 2 6 0 ▁= ▁ 1 , 1 5 2 , 9 2 1 , 5 0 4 , 6 0 6 , 8 4 6 , 9 7 6 ▁ ▁The ▁binary ▁approximation ▁of ▁the ▁ex a -, ▁or ▁ 1 , 0 0 0 , 0 0 0 , 0 0 0 , 0 0 0 , 0 0 0 , 0 0 0 ▁multip lier . ▁▁ 1 , 1 5 2 , 9 2 1 , 5 0 4 , 6 0 6 , 8 4 6 , 9 7 6 ▁bytes ▁= ▁ 1 ▁ex aby te ▁( or ▁ex bib y te ). ▁▁ 2 6 3 ▁= ▁ 9 , 2 2 3 , 3 7 2 , 0 3 6 , 8 5 4 , 7 7 5 , 8 0 8 ▁ ▁The ▁number ▁of ▁non - negative ▁values ▁for ▁a ▁signed ▁ 6 4 - bit ▁integer . ▁▁ 2 6 4 ▁= ▁ 1 8 , 4 4 6 , 7 4 4 , 0 7 3 , 7 0 9 , 5 5 1 , 6 1 6 ▁ ▁The ▁number ▁of ▁distinct ▁values ▁represent able ▁in ▁a ▁single ▁word ▁on ▁a ▁ 6 4 - bit ▁processor . ▁Or , ▁the ▁number ▁of ▁values ▁represent able ▁in ▁a ▁double word ▁on ▁a ▁ 3 2 - bit ▁processor . ▁Or , ▁the ▁number ▁of ▁values