The common factors are: 1, 2, 3, 4, 6, 12.
Common factors of 24, 48, and 84 are: 1, 2, 3, 4, 6, and 12.
The Factors of 24 are 1,2,3,4,6,8,12, & 24The factors of 84 are 1,2,3,4,6,7,12,14,21,28,42, & 84So the answer is 12
Since 72 is a multiple of 24, and the greatest common factor cannot be greater than the smallest number, the greatest common factor of 84, 72, and 24 will be the greatest common factor of 84 and 24. The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84. The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24. (The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72.) The greatest common factor is 12. Or, you can look at the prime factors. The prime factors of 84 are 2, 2, 3, and 7. The prime factors of 24 are 2, 2, 2, and 3. (The prime factors of 72 are 2, 2, 2, 3, and 3.) The prime factors they have in common are 2, 2, and 3, so the greatest common factor is 2 x 2 x 3 = 12.
The common factors of 28 and 84 are 1,2,4,7,14 and 28
The common factors of 28 and 84 are 1,2,4,7,14 and 28.
Common factors of 15 and 84 are: 1 and 3.
The common factors of 21 42 and 84 are 21
Since 12 is a factor of 84, all of its factors are common.
Since 21 is a factor of 84, all of its factors are common.
1, 2, 3, 4, 6, 12
The factors of 84 are 1,2,3,4,6,7,12,14,21,28,42 and 84. To find a greatest common factor, you need to compare them to another number's factors.
The greatest common factor of 24, 84, 168 is 12.