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Composite Details

ID: 20873 | 153 digits

197504406155271935355744600495650747277304824702093803856446234131324212826259190381933531918688054750861214283276890814994861877425178838964551006923713

Composite Information

ID20873
Original Form(181809231287468455800615909615266348821^7-1)/(181809231287468455800615909615266348821-1)
Current Composite 1975044061552719353557446004956507472773048247020938038564462341313242128262591903819335319186880547...
Digit Length153
SNFS Possible Yes
GNFS Equivalent 163
Priority3
Created2025-12-01 13:30:08.349493
Last Updated2026-01-12 17:38:38.995548
Status Active

T-Level Progress

Current T-Levelt36.28
Target T-Levelt47.08
Progress
77.1%

Work Summary

Total Attempts3
Total ECM Curves5,152
P-1 Attempts0
Factors Found3

Factors: 18796264448678553273493687, 286579317800033103102778094057821, 2119861339030790382652684983494687706108499

Factors with Elliptic Curve Group Order Data

Factor Sigma Group Order Group Order Factorization
18796264448678553273493687 581,681,400 18796264448681224826599780 2^2 * 5 * 9311 * 12413 * 20327 * 547103 * 731183
286579317800033103102778094057821 1,562,514,967 286579317800033080683939487877452 2^2 * 127 * 1481 * 11393 * 56237 * 63299 * 2503103 * 3752237
2119861339030790382652684983494687706108499 1,562,516,243 2119861339030790382654749213022572237476000 2^5 * 5^3 * 11 * 19^2 * 127 * 1291 * 281227 * 298063 * 870341 * 1336957 * 8345371

Factorization Attempts by Method

ECM 5,152 curves
P-1 0 attempts
P+1 0 attempts
ECM Statistics:
Total Attempts: 3
Total Curves: 5,152
Factors Found: 2
B1 Range: 250,000 - 11,000,000
B1 B2 Param Curves Factor Found Client Submitted
11,000,000 Stage 1 only 3 2,560 211986133903079038265268498349... [+1 more] KyleAskine-Google-Colab 2025-12-01 15:20
1,000,000 Stage 1 only 3 2,560 18796264448678553273493687 KyleAskine-Google-Colab 2025-12-01 13:50
250,000 Stage 1 only 3 32 None KyleAskine-Google-Colab 2025-12-01 13:37
P-1 Statistics:
Total Attempts: 0
Factors Found: 0

No P-1 attempts yet.

P+1 Statistics:
Total Attempts: 0
Factors Found: 0

No P+1 attempts yet.