DAY 149

Today’s Challenge

If you added 3+6, then to that answer added 9, then 12 . . . and kept on adding consecutive multiples of 3 to the previous total, what is the first answer you would reach that is more than 100?

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The 7puzzle Challenge

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

The 2nd & 6th rows of the playing board contain the following fourteen numbers:

5     8     12     17     18     20     28     33     48     49     55     56     63     64

How many prime numbers and square numbers are listed here altogether?

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Answers

. . . can be found when clicking this.

7puzzleblog

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