if log 2 = 0.30103 , the number of digits in 2128 is .
log ( 2128 ) = 128 log ( 2 ) = 128 × 0.30103 ≈ 38.4 ie , its characteristic = 38 hence , number of digits in 2128 = 38 + 1 = 39 answer : option b
multiply(0.30103, subtract(2128, multiply(const_2, const_1000)))