Common factors of 20, 25, and 40 are: 1 and 5.
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The greatest common multiple of any set of integers is infinite.
The greatest common factor of 20 and 25 is 5:The factors of 20 are 1, 2, 4, 5, 10 and 20.The factors of 25 are 1, 5, and 25.The common factors of 20 and 25 are therefore 1 and 5 (and 5 is, of course, the highest).The HCF is: 5
1 and 5
Factors of 20: 1, 2, 4, 5, 10, 20 Factors of 25: 1, 5, 25 Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40 GCF (20, 25, 40) = 5
The factors of 75 are: 1 - 3 - 5 - 15 - 25 - 75 The factors of 100 are: 1 - 2 - 4 - 5 - 10 - 20 - 25 - 50 - 100 Common Factors are: 5 & 25