768/348 = 384/174 = 192/87 768 = 2 * 2 * 2 * 2 * 2 * 2 * 2 * 3, 348 = 2 * 2 * 87
1296/486 = 638/243
1296 = 2 * 2 * 11 * 29
486 = 2 * 3 * 3 * 3 * 3 * 3
5625/2025 = 25/9
5625 = 3 * 3 * 5 * 5 * 5 * 5
2025 = 3 * 3 * 3 * 3 * 5 * 5
2323/1919 = 23/19
2323 = 23 * 101
1919 = 19 * 101
663/2142 = 221/714
663 = 3 * 13 * 17
2142 -= 2 * 3 * 7 * 51
1564/1020 = 391=255
1564 = 2 * 2 * 17 * 23
1020 = 2 * 2 * 5 * 51