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The factors of 12 are: 1, 2, 3, 4, 6, 12.
The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30.
The common factors are: 1, 2, 3, 6.
The Greatest Common Factor (GCF) is: 6
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoSix -- six goes into 12 two times and six goes into 30 five times
Wiki User
∙ 13y ago30 = 2 x 3 x 5
12 = 2 x 2 x 3
Common is 2 x 3, so gcf = 6
Wiki User
∙ 6y agoIt is: 1 but the highest common factor is 6
Wiki User
∙ 11y agoThe HCF is: 6
Wiki User
∙ 9y agoThe GCF is 6.
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