Respuesta :

The GCF of 8x and 40 is 8

40 | 2
20 | 2
10 | 2
  5 | 5
  1 


8 | 2
4 | 2
2 | 2
1

40 = 2³ * 5
8 = 2³

We take only common factors with lowest exponent.

So 2³ = 8

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