Very good, but why are you replying to me? I was arguing that the product of two 200 digit primes is not necessarily 400 digits. It may only be 399. Perhaps you'd like to tell the OP that he can prove the existence of such primes without finding them. I expect that was what his professor had in mind anyway...

-sauoq
"My two cents aren't worth a dime.";

In reply to Re: Re: Re: Re: Finding Primes by sauoq
in thread Finding Primes by Tommy

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