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2019-05-16, 19:30   #12
rogue

"Mark"
Apr 2003
Between here and the

646710 Posts

Quote:
 Originally Posted by ewmayer Hey, George, here's an idea -- offer an autographed copy of one of your prime discovery papers to $100 donors. I think that donors would prefer a t-shirt or poster with one of the Mersenne Primes printed on it. That does give me an idea. Someone could design a GIMPS t-shirt. The cost per t-shirt would likely be less than$5 per t-shirt, but could be sold for \$15. I think that would get you a lot of donors.