2*2+156678*77*99

Let's calculate the expression step by step: 1. First, calculate \(2 \times 2\): \[ 2 \times 2 = 4 \] 2. Next, calculate \(156678 \times 77 \times 99\): - First, calculate \(156678 \times 77\): \[ 156678 \times 77 = 12065286 \] - Now, multiply that result by \(99\): \[ 12065286 \times 99 = 1194462864 \] 3. Now, add the results from step 1 and step 2: \[ 4 + 1194462864 = 1194462868 \] Thus, the final result of the expression \(2 \times 2 + 156678 \times 77 \times 99\) is: \[ \boxed{1194462868} \]