10^12 (running in background for ~ 3h)

( 11:56:32 ) Starting with: 1000000 1000000000000
( 12:08:37 ) 6 178 3
( 12:11:07 ) 7 300 3
( 12:13:10 ) 8 373 3
( 12:15:43 ) 9 3360633 7
( 12:17:54 ) 10 676 3
( 12:21:38 ) 12 1111 3
( 12:24:27 ) 13 19987816 7
( 12:26:55 ) 14 1702 3
( 12:28:45 ) 15 43443858 7
( 12:30:20 ) 16 2473 3
( 12:33:17 ) 18 3448 3
( 12:36:54 ) 20 4651 3
( 12:42:13 ) 22 6106 3
( 12:42:15 ) 22 532083314 7
( 12:48:00 ) 24 7837 3
( 12:52:11 ) 26 9868 3
( 12:52:14 ) 26 1778140759 7
( 12:55:26 ) 28 12223 3
( 12:55:30 ) 28 2721194733 7
( 12:55:43 ) 28 11325719295 7
( 12:58:08 ) 30 14926 3
( 13:00:32 ) 32 18001 3
( 13:02:52 ) 34 21472 3
( 13:05:18 ) 36 25363 3
( 13:05:53 ) 36 47622367425 7
( 13:06:50 ) 37 19683596522 7
( 13:07:58 ) 38 29698 3
( 13:10:58 ) 40 34501 3
( 13:11:51 ) 40 97638433343 7
( 13:14:26 ) 42 39796 3
( 13:16:11 ) 42 224678540182 7
( 13:18:17 ) 43 265282702996 7
( 13:18:28 ) 44 45607 3
( 13:20:45 ) 45 154593982 5
( 13:23:10 ) 46 51958 3
( 13:28:40 ) 48 58873 3
( 13:31:34 ) 48 561091062285 7
( 13:31:47 ) 49 234531337 5
( 13:32:25 ) 49 133256051308 7
( 13:35:05 ) 50 66376 3
( 13:42:35 ) 52 74491 3
( 13:46:43 ) 53 344570692 5
( 13:50:32 ) 54 83242 3
( 13:57:39 ) 56 92653 3
( 13:58:45 ) 56 326217315210 7
( 14:01:00 ) 57 492511567 5
( 14:04:03 ) 58 102748 3
( 14:09:52 ) 60 113551 3
( 14:12:39 ) 61 687397642 5
( 14:14:07 ) 61 597702412638 7
( 14:15:08 ) 62 125086 3
( 14:16:46 ) 62 657158314249 7
( 14:19:55 ) 64 137377 3
( 14:22:15 ) 65 939608917 5
( 14:24:19 ) 66 150448 3
( 14:28:20 ) 68 164323 3
( 14:30:21 ) 69 1260953872 5
( 14:32:04 ) 70 179026 3
( 14:35:31 ) 72 194581 3
( 14:37:18 ) 73 1664761627 5
( 14:38:45 ) 74 211012 3
( 14:41:45 ) 76 228343 3
( 14:43:21 ) 77 2165974102 5
( 14:44:35 ) 78 246598 3
( 14:47:15 ) 80 265801 3
( 14:48:43 ) 81 2781238177 5
( 14:49:47 ) 82 285976 3
( 14:52:12 ) 84 307147 3
( 14:53:36 ) 85 3528997852 5
( 14:54:33 ) 86 329338 3
( 14:56:45 ) 88 352573 3
( 14:58:08 ) 89 4429586407 5
( 14:58:57 ) 90 376876 3
( 15:01:06 ) 92 402271 3
( 15:02:25 ) 93 5505318562 5
( 15:03:16 ) 94 428782 3
( 15:05:19 ) 96 456433 3
( 15:06:38 ) 97 6780582637 5
( 15:07:16 ) 98 485248 3
( 15:09:12 ) 100 515251 3