9999999999999999999999999999999999999999999 x 999999999999999999999999999999999999999999999999999999
= 99999999999999999999999999999999980000000000000000000000000000000001
khét khét khét............................
khét khét khét khét ..........................
99999999999999999999999999999999999 x 999999999999999999999999999999999 = 999999999999999999999999999999999992
khét mũ 2 là mình nghĩ ra tr cho mình nha
=99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
9,9999999999999999999999999999998e+63
9999999999999999999999999999999999x99999999999999999999999999999999999999