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grid numbers

rust8y
in Brain Teasers and Puzzles

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This 2x5 grid is filled with digits which are all different. the 4 digit number B is a multiple of the 4 digit number A. All but one of the 2 digit down numbers are primes. No 2-digit and 4-digit number starts with 0.

 

In which square must 0 be placed? Explain why this is the only possible square.

 

Complete the grid and explain at each step why you placed each digit in a particular position.

2x5_Grid.bmp

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