1 and 2
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The common factors of 4, 12, and 30 are 1 and 2.
The common factors are: 1, 2
Factors of 4: 1, 2, 4 Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30 Compare. Greatest common factor is 2.
I am guessing you want common factors. That is to say factors common to 10 and 30 The common factors would be: 1,2, 5, and 10, but there only 4 that are common. 15 and 30 are factors of 30 so if you add those you have 6 factors.
The factors of 16 are 1, 2, 4, 8, and 16. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The common factors are 1 and 2. Factors of 16: 2,4,8,16 Factors of 30: 2,3,5,6,10,15,30 Therefore 2 is a common factor of 16 and 30
4 of them.
Factors of 16 are 1, 2, 4, 8, and 16 Factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30 The common factors of 16 and 30 are 1 and 2, and the GCF is 2.
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 factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. The common factors of 30 and 40 are 1, 2, 5, and 10, and the GCF is 10.
The common factors of 30 and 40 are 1, 2, 5, 10
The factors of 20 are 1, 2, 4, 5, 10 and 20. The factors of 30 are 1, 2, 3, 5, 6, 10, 15 and 30. Therefore their common factors are 1, 2, 5 and 10.
The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 The factors of 76 are: 1, 2, 4, 19, 38, 76 The common factors are: 1, 2, 4