# DAY/DYDD/GIORNO/NAP 271:

The Main Challenge

Of all the whole numbers from 1-100, find the longest run of consecutive numbers that are NOT prime numbers. What are the lowest and highest numbers in that run?

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?

The Factors Challenge

Which of the following numbers are factors of 271?

3     5     7     9     11     13     None of them

The Mathematically Possible Challenge

Using 37 and once each, with + – × ÷ available, which are the only THREE numbers it is possible to make from the list below?

1    4    9    16    25    36    49    64    81    100

#SquareNumbers

The Target Challenge

Can you arrive at 271 by inserting 3, 4, 4, 5 and 6 into the gaps below?

•  ((◯+◯)²+◯)×◯ = 271

Answers can be found here.

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