Simple calculation: how to calculate 125 × 25 × 32 × 17 with simple algorithm is urgent, Don't have any symbols in it,

Simple calculation: how to calculate 125 × 25 × 32 × 17 with simple algorithm is urgent, Don't have any symbols in it,

32 divided into 4 and 8; 4 times 25 equals 100, 8 times 125 equals 1000; very simple