Question

(9 × 20 × 19)(6 × 18 × 21 × 19 × 20 × 1 × 20 × 9 × 14 × 7) = ? ​

Answer 1

9 x 20 x 19 = 3420

6 x 18 x 21 x 19 x 20 x 1 x 20 x 9 x 14 x 7 = 15202857600

3420 x 15202857600 = 5199377299200

Therfore, the answer is 5199377299200.