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Problem 60 wrong answer?
Posted: Sun Aug 14, 2022 6:40 pm
by br_klaus
The answer should be <snipped by moderator /snipped>. But I found a lower sum for a set of five primes concatenating each other, including the number 1 (or is this no prime?):
1-7-19-97-2161 with the sum: 2285
Re: Problem 60 wrong answer?
Posted: Mon Aug 15, 2022 1:00 am
by v6ph1
1 is not a prime...
Re: Problem 60 wrong answer?
Posted: Mon Sep 12, 2022 3:32 pm
by kastanya
2 is the first prime number, 1 is not prime.
Re: Problem 60 wrong answer?
Posted: Wed Sep 14, 2022 8:13 am
by pjt33
br_klaus wrote: Sun Aug 14, 2022 6:40 pmThe answer should be X.
You
really shouldn't post answers to problems like this. I've flagged it for the admins, but if you get there first then please edit out the answer.