DAY 271

Today’s Challenge

If you write out all numbers from 1-100, what is the longest run of consecutive numbers that are not prime numbers?  What is the lowest and highest numbers in that run?

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The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 2nd & 7th rows contain the following fourteen numbers:

4     8     11     17     24     27     28     30     48     55     63     64     70     77

What is the sum of the square numbers?

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Answers

. . . can be found when clicking this.

7puzzleblog

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