The only common factor of those three numbers is 1.
The only common factor is 1.
The common factors of 6 and 10 are 1 and 2.
Factors of 6: 1, 2, 3, and 6. Factors of 18: 1, 2, 3, 6, 9, and 18. Factors of 10: 1, 2, 5, and 10. These three numbers have factors that are common in all of them. Those common factors are 1 and 2. The greatest factor they have in common is 2.
The factors of 10 are 1,2,5, and 10. The factors of 6 are 1,2,3, and 6. The common factors of 6 and 10 are 1 and 2.
The factors of 6 are 1, 2, 3, and 6The factors of 10 are 1, 2, 5, and 10The common factors of 6 and 10 are 1 and 2
It is three.
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.
2. This is the largest number that will divide evenly into both 6 and 10. Factors of 6 are 2 and 3 Factors of 10 are 2 and 5 GCF is 2 Common factors of 6 and 10 are the factors of 2, which are 1 and 2.
1 and 2
1 and 2
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. For them to be common, they need to be compared to another set of factors.
The common factors of 120 and 150 are 1, 2, 3, 5, 6, 10, 15 and 30