There is just one set of three consecutive numbers in ascending order whose sum is less than 50 that make the following sequence:
- prime number – cube number – square number
What is the sum of these three numbers?
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 6th & 7th rows of the playing board contain the following fourteen numbers:
4 5 11 12 18 20 24 27 30 33 49 56 70 77
What is the sum of the multiples of 11?
. . . can be found when clicking this.