Magic Square 111 Puzzle - Solution

The Puzzle:

Magic Square 111
The box below is a Magic Square. This means that the numbers add up to the same total in every direction.

Every row, column and diagonal adds up to 111. But there are some numbers missing! Fill in the missing numbers. They are all different.

Our Solution:

Interestingly, all the numbers are odd, and (apart from the 1) are prime, too.

Puzzle Author: Stephen Froggatt

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