# Known 31-digit prime factors of Googolplex - 1

1. Alpertron
2. Number Theory
3. Known 31-digit prime factors of Googolplex − 1
1. 1 0625324586 4567017308 1600000001 (Phil Carmody, k=9)
2. 1 0715883342 4633566616 0926720001 (Dario Alpern, k=1452273)
3. 1 0777600000 0000000000 0000000001 (Phil Carmody, k=421)
4. 1 2884901888 0000000000 0000000001 (Phil Carmody, k=3)
5. 1 4934375000 0000000000 0000000001 (Dario Alpern, k=4779)
6. 1 5312238733 0596864000 0000000001 (Phil Carmody, k=17)
7. 1 5643239021 3012695312 5000000001 (Dario Alpern, k=5249)
8. 2 2893073037 2667312622 0703125001 (Dario Alpern, k=3933)
9. 2 3592960000 0000000000 0000000001 (Phil Carmody, k=9)
10. 2 5023100569 7073753148 6208000001 (Dario Alpern, k=271301)
11. 2 6575110144 0000000000 0000000001 (Phil Carmody, k=99)
12. 3 1391746727 4352294625 2800000001 (Dario Alpern, k=6807)
13. 3 1688526272 7737426757 8125000001 (Dario Alpern, k=2126581)
14. 3 5092800000 0000000000 0000000001 (Dario Alpern, k=21933)
15. 3 6379788070 9171295166 0156250001 (Phil Carmody, k=1)
16. 3 7252902984 6191406250 0000000001 (Phil Carmody, k=1)
17. 3 9173755794 7635650634 7656250001 (Phil Carmody, k=673)
18. 3 9321600000 0000000000 0000000001 (Phil Carmody, k=3)
19. 4 1875000000 0000000000 0000000001 (Phil Carmody, k=67)
20. 4 9325015040 0000000000 0000000001 (Phil Carmody, k=147)
21. 5 4463134765 6250000000 0000000001 (Dario Alpern, k=223081)
22. 5 8112081920 0000000000 0000000001 (Phil Carmody, k=2771)
23. 5 9891389860 5641832857 6000000001 (Dario Alpern, k=20779)
24. 6 9031719473 8886707453 1965009921 (Dario Alpern, k=571017)
25. 6 9384956148 7114240000 0000000001 (Dario Alpern, k=252421)
26. 7 0464307200 0000000000 0000000001 (Phil Carmody, k=21)
27. 7 4732430950 4000000000 0000000001 (Phil Carmody, k=87)
28. 8 0530636800 0000000000 0000000001 (Phil Carmody, k=3)
29. 8 2255085568 0000000000 0000000001 (Dario Alpern, k=1255113)
30. 9 0388191968 4220407717 5955521537 (Dario Alpern, k=14603)

Perl script written by Dario Alejandro Alpern. Last updated on May 25th, 2015.