I've been in GIMPS since before the first one was discovered.  Today I 
finished an exponent, and saw some stuff I haven't seen before.

After it completed, it said
M14776187 stage 1 complete ---transformations --- time
starting stage 1 GCD
stage 1 GCD complete
ERROR: factor doesn't divide N!
contacting server
etc.

What went wrong?

It looks like at the end of the L-L test, it did a GCD, thought it found a 
factor, but it wasn't a factor.

For a while during this exponent, I had quick user switching on with 
WinXP.  When I realized that prime95 was running twice as slow, I figured 
out that quick switching was causing two copies of primr95 to run.  Could 
that cause a problem?


+---------------------------------------------------------+
|       Jud McCranie                                      |
|                                                         |
| Programming Achieved with Structure, Clarity, And Logic |
+---------------------------------------------------------+



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