657 x 234 ------ 2628 (657 * 4) 1971 (657 * 30) 1314 (657 * 200) ------ 153738
745 x 186 ------ 4470 (745 * 6) 5960 (745 * 80) 745 (745 * 100) ------ 138570
1526 x 318 ------ 12208 (1526 * 8) 1526 (1526 * 10) 4578 (1526 * 300) ------ 485268
2673 x 425 ------ 13365 (2673 * 5) 5346 (2673 * 20) 10692 (2673 * 400) ------ 1136025
Ответ: 657 · 234 = 153738; 745 · 186 = 138570; 1 526 · 318 = 485268; 2 673 · 425 = 1136025