The factors of 8 are: 1 2 4 8 The prime fators are: 2 x 2 x 2 & The factors of 20 are: 1 2 4 5 10 20 The prime factors are: 2 x 2 x 5
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1,2,4,8 1,2,4,5,10,20
The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors of 32 are 1, 2, 4, 8, 16, and 32.
The factors of 20 are 1,2,4,5,10,20 The factors of 24 are 1,2,3,4,6,8,12,24
There are 8 factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
The GCF of 8 and 20 is 48 = 2 x 2 x 220 = 2 x 2 x 5There are 2 twos in each so 2 x 2 = 4The GCF is 4.Another explanation:The factors of 8 are 1, 2, 4, and 8.The factors of 20 are 1, 2, 4, 5, 10, and 20.The common factors are 1, 2, and 4. Therefore, the greatest common factor is 4.The GCF is 4.