We found a 154-digit prime six weeks later, left our network running at full capacity, and as expected, delivered our prime without running into our "business partners" on the way.

Having settled the girl in front of the spiral again, I decided she was going back to the institution – now we had MegaPrimes off our backs we didn't need her. It would also mean I could actually sleep at night, or bring girls over as a little reward.

It was a warm evening, like the one when we discovered our first prime. We were drinking beers in front of the warehouse, watching our suburban friends having a wheelie contest on their scooters. When we went back inside to lock up for the night, I told the girl off for writing something on the spiral. But Matt pointed at her scribbles. I'd put a question mark at a point in the 155-digit segment... arbitrarily, like I usually do. The girl had written a number there, of 155 digits.

Matt and I looked at each other. He launched the machines to verify it, and I took the girl home so she could sleep.

I gotta say, I didn't sleep well that night. While she was moaning in her dream of fathomless abysses that would probably devour her soon, I was lying on the couch watching her in amazement through the dark. I had wished for a goose that laid golden eggs... Had my dream come true?