P-1 found a factor in stage #1, B1=615000.
UID: Jwb52z/Clay, M72162049 has a factor: 163517881312940080765049 (P-1, B1=615000)

77.114 bits.

P-1 found a factor in stage #2, B1=670000, B2=12730000.
UID: Jwb52z/Clay, M77151071 has a factor: 105112265729878315512607 (P-1, B1=670000, B2=12730000)

76.476 bits.

P-1 found a factor in stage #2, B1=620000, B2=11470000.
UID: Jwb52z/Clay, M72661607 has a factor: 721194472254253579910017 (P-1, B1=620000, B2=11470000)

The web site that allowed you to submit results and to check the bit size of your factor no longer accepts results submitted below "1000M", so I don't know how to find the bit depth for this factor now.

[QUOTE=Jwb52z;408239]P-1 found a factor in stage #2, B1=620000, B2=11470000.
UID: Jwb52z/Clay, M72661607 has a factor: 721194472254253579910017 (P-1, B1=620000, B2=11470000)

The web site that allowed you to submit results and to check the bit size of your factor no longer accepts results submitted below "1000M", so I don't know how to find the bit depth for this factor now.[/QUOTE]

log (721194472254253579910017) \ log (2) = 79.254734521384333395701284634627

[QUOTE=Jwb52z;408239]The web site that allowed you to submit results and to check the bit size of your factor no longer accepts results submitted below "1000M", so I don't know how to find the bit depth for this factor now.[/QUOTE]
The entry for on the lower right side of [URL="http://www.mersenne.ca/"]Mersenne.ca[/URL] will do it for you.

P-1 found a factor in stage #2, B1=670000, B2=12730000.
UID: Jwb52z/Clay, M77284997 has a factor: 307550488804619397198217 (P-1, B1=670000, B2=12730000).

78.025 bits.

P-1 found a factor in stage #1, B1=620000.
UID: Jwb52z/Clay, M72684683 has a factor: 52202616324930097922768863 (P-1, B1=620000).

85.432 bits.

P-1 found a factor in stage #2, B1=620000, B2=11470000.
UID: Jwb52z/Clay, M72685439 has a factor: 3091868382160271484282143 (P-1, B1=620000, B2=11470000).

81.355 bits.

[Thu Sep 17 12:41:45 2015]
ECM found a factor in curve #1, stage #2
Sigma=4339232396038175, B1=50000, B2=5000000.
UID: nitro/haswell, M11030779 has a factor: 2158232198221851211938767 (ECM curve 1, B1=50000, B2=5000000), AID: DC4E685AD94DB28E1277F967E6BA****

According to mersenne.ca it is 80.8 bits

Another < 1M down:

M984047 has a factor: 3108608385818956152983
71.4 bits.
Found by ECM, and for good reason: k=1579501988126053 = 907 × 1741457539279. Would cost a couple thousand GHz-days to get it through P-1.

P-1 found a factor in stage #1, B1=625000.
UID: Jwb52z/Clay, M73438811 has a factor: 126111349467688907859623017 (P-1, B1=625000)

86.705 bits.