DAY 340

Today’s Challenge

What is the lowest number with exactly 10 factors?

. . . and then the next lowest too?

.

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.

The 2nd & 7th columns of the playing board contain the following fourteen numbers:

2     5     9     10     16     24     28     32     33     45     48     50     66     70

What is the sum of the multiples of 9?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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