The factors of 21 are: 1, 3, 7, 21.
The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.
The common factors are: 1, 3, 7, 21
The common positive integer factors of 14 and 84 are 1, 2, 7, 14.
1, 2, 3 and 6
Since 12 is a factor of 84, all of its factors are common.
The GCF of 132 and 198 is 66. The factors of 132 are 2x66=2x2x3x11, The factors of 198 are 198= 3x66=2x11x3x3 The GCF is 66.
The common factors are: 1, 7
The common factors are: 1, 2.
Since 6 is factor of 84, all of its factors are common.
Common factors of 15 and 84 are: 1 and 3.
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.
The common factors are:1, 2, 11, 22
Since 21 is a factor of 84, all of its factors are common.
Since 12 is a factor of 84, all of its factors are common.
The common factors of 21 42 and 84 are 21
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 common factors of 63 and 84 are: 1, 3, 7, and 21
The common factors of 78 and 84 are 1, 2, 3 and 6.
198 factors to [2 3 3 11] 36 factors to [2 2 3 3] Common factors are [2 3 3] = 18 198 * 36 / 18 = 396
The GCF of 132 and 198 is 66. The factors of 132 are 2x66=2x2x3x11, The factors of 198 are 198= 3x66=2x11x3x3 The GCF is 66.