# 4095 * 837
4095      837 ✓
2047     1674 ✓
1023     3348 ✓
 511     6696 ✓
 255    13392 ✓
 127    26784 ✓
  63    53568 ✓
  31   107136 ✓
  15   214272 ✓
   7   428544 ✓
   3   857088 ✓
   1  1714176 ✓
      ------- +
      3427515