@ @pbjïØ Üa@ @X () .9 1 91 . 79 . ( 28 . 9 × 8 × 7 = 504 () ) .9 0 . 28 . 28 × 28 × 28 = 21952 . 10 .10 ×10 ×10 ×10 = 10000 .21952 ×10000 = 219520000 Bm A ()