It seems that any number with 300 or more digits seems very hard to get. How can I find two prime numbers that if multiplied, I'll get a 400 digit number?
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Anonymous2005-11-04 21:03
the largest known primes are mersenne primes because they're all 1s. 2^n-1 is n-1 ones. ie. 2^11-1 = 1111111111. easy to work with on computers.