PrimeGrid: Long Duration SR5 Tasks May Be Prime

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... so don't abort them! If you notice that one of your SR5 tasks is running a LOT longer than usual, or even that it went back to 0% after reaching 100% done, DO NOT ABORT IT. You may have found a prime! The test for base 5 Riesel numbers (i.e., of the form k*5^n-1) need to perform a second test if the first test indicates that the number may be prime, and the second test takes three times as long as the first test. SR5 primes can be discussed here (http://www.primegrid.com/forum_thread.php?id=5115).

More... (http://www.primegrid.com/forum_thread.php?id=5116)