Setting a Prime Number Record
A computer search has turned up the largest prime number yet found.
By Emily Sohn, 00:00 AM March 17, 2005
What's the biggest number you can think of? A billion? A trillion? A googol? (That's 1 followed by 100 zeroes.) Whatever number you come up with, there's always a larger one. You could write down 1 and keep adding zeroes after it until you hand gets tired, and you still wouldn't get to the "last" number. There's always another number right after whatever you've written down. Just add 1 and you'll get a bigger number.
Certain types of numbers, though, are special. A computer search has now tur...
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