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Composite Details

ID: 15995 | 165 digits

239916762137255503815745116896145914520817958833437627840502020509773692862644165831940007455354825255944970212154925908827645095008336850201652296818020545408880107

Composite Information

ID15995
Original Form(3238102177276334231724075429187^7-1)/(3238102177276334231724075429187-1)
Current Composite 2399167621372555038157451168961459145208179588334376278405020205097736928626441658319400074553548252...
Digit Length165
SNFS Possible Yes
GNFS Equivalent 139
Priority2
Created2025-10-01 13:27:42.307000
Last Updated2025-12-12 16:47:11.272477
Status Active

T-Level Progress

Current T-Levelt30.08
Target T-Levelt42.77
Progress
70.3%

Work Summary

Total Attempts3
Total ECM Curves853
P-1 Attempts0
Factors Found1

Factors: 686411672738555513

Factors with Elliptic Curve Group Order Data

Factor Sigma Group Order Group Order Factorization
686411672738555513 3,523,927,677 686411674268055744 2^6 * 3 * 17 * 389 * 2683 * 9743 * 20681

Factorization Attempts by Method

ECM 853 curves
P-1 0 attempts
P+1 0 attempts
ECM Statistics:
Total Attempts: 3
Total Curves: 853
Factors Found: 1
B1 Range: 11,000 - 250,000
B1 B2 Param Curves Factor Found Client Submitted
250,000 Default 1 498 None VGDominion-MacBookAir 2025-11-18 03:28
50,000 Default 1 260 None VGDominion-MacBookAir 2025-11-18 03:26
11,000 Default 1 95 686411672738555513 VGDominion-MacBookAir 2025-11-18 03:26
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.