DAY 13

Today’s Challenge

Starting from 2, list the first seven even numbers that are NOT multiples of 3, 5 or 7. What is the 7th number in your list?

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The 7puzzle Number Challenge

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

The 5th & 6th rows of the playing board contain the following fourteen numbers:

5     6     7     12     16     18     20     21     33     49     50     56     81     84

From the list:

  1. What is the sum of the factors of 40?
  2. What is the sum of the square numbers?
  3. Which two numbers have a sum of 101?

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Answers

. . . can be found when clicking this.

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