Find the greatest common factor of 24 and 42.
The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.
The common factors of 24 and 42 are 1, 2, 3, and 6.
Therefore, the greatest common factor of 24 and 42 is 6.
Find the greatest common factor of 38 and 45.
The factors of 38 are 1, 2, 19, and 38.
The factors of 45 are 1, 3, 5, 9, 15, and 45.
The common factors of 38 and 45 are 1.
Therefore, the greatest common factor of 38 and 45 is 1.
Find the greatest common factor of 28 and 24.
The factors of 28 are 1, 2, 4, 7, 14, and 28.
The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.
The common factors of 28 and 24 are 1, 2, 4.
Therefore, the greatest common factor of 28 and 24 is 4.
Find the greatest common factor of 9 and 28.
The factors of 9 are 1, 3, and 9.
The factors of 28 are 1, 2, 4, 7, 14, and 28.
The common factor of 9 and 28 is 1.
Therefore, the greatest common factor of 9 and 28 is 1.
Find the greatest common factor of 14 and 9.
The factors of 14 are 1, 2, 7, and 14.
The factors of 9 are 1, 3, and 9.
The common factor of 14 and 9 is 1.
Therefore, the greatest common factor of 14 and 9 is 1.