The highest common factor is 5
The only common factor of 15, 20 and 24 is 1.
The GCF is 5.
-- List all the factors for each number:Factors of 15: 1, 3, 5, and 15.Factors of 20: 1, 2, 4, 5, 10, and 20.-- Look over the lists. Find any numbers that are on both lists:Common factors of 15 and 20: 1 and 5 .-- Pick out the common factor that's biggest:Greatest common factor of 15 and 20 is 5 .
Since 5 is a factor of 20, all the factors of 5 are common to 20.
The GCF is 4.
The GCF is 1.
The factors of 17 are 1 and 17 The factors of 20 are 1, 2, 4, 5, 10, and 20 The greatest common factor of 17 and 20 is 1
2 x 2
The greatest factor of 15 is 15. The greatest factor of 20 is 20. The greatest common factor of 15 and 20 is 5.
The greatest common factor of 15, 20, and 25 is 5.
The greatest common factor of 15 and 20 is 5.
The highest common factor is 5
The GCF of 15, 20, and 30 is 5.5
The common factor of 15, 16, and 20 is just 1
The Greatest Common Factor of 15, 20 and 25 is 5.
The Greatest Common Factor (GCF) is: 5