The only common factor is 1.
The factors of 15 are 1, 3, 5, and 15. The factors of 20 are 1, 2, 4, 5, 10, and 20. The common factors are 1 and 5.
Just 1.
4,20 and,24 have 3 common factors and they are 1,2,4. :-)
The common factors of 21 and 36 are 1 and 3
The factors of 12 are 1, 2, 3, 4, 6, and 12The factors of 18 are 1, 2, 3, 6, 9, and 18The factors of 20 are 1, 2, 4, 5, 10, and 20The common factors of 12, 18 and 20 are 1 and 2The common factors of 12 and 18 are 1, 2, 3, and 6The common factors of 12 and 20 are 1, 2, and 4The common factors of 18 and 20 are 1 and 2The total number of factors for 12, 18 and 20 are all the same (6).
Factors of 12 are 1, 2, 3, 4, 6, and 12 Factors of 20 are 1, 2, 4, 5, 10, and 20 Common factors would be 1, 2, and 4.
the factors of 5 are 1 and 5the factors of 20 are 1 2 4 5 10 20the factors of 45 are 1 3 5 9 15 45so the common factors are 1 and 5
The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 20 are: 1, 2, 4, 5, 10, 20 The factors of 50 are: 1, 2, 5, 10, 25, 50 The common factors are: 1, 2 The factors of 12 are: 1, 2, 3, 4, 6, 12 The factors of 15 are: 1, 3, 5, 15 The factors of 18 are: 1, 2, 3, 6, 9, 18 The common factors are: 1, 3
The factors of 10 are: 1, 2, 5, 10.The factors of 15 are: 1, 3, 5, 15.The factors of 20 are: 1, 2, 4, 5, 10, 20.The common factors are: 1, 5.
The factors of 6 are: 1, 2, 3, 6The factors of 20 are: 1, 2, 4, 5, 10, 20The common factors are: 1, 2The Greatest Common Factor: 2
The GCF of 12 and 20 is 4.The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 20 are 1, 2, 4, 5, 10, and 20.The factors they have in common are 1, 2, and 4. Therefore, 4 is the greatest common factor.The greatest common factor can also be determined from the prime factors by multiplying the common prime factors together.The prime factors of 12 are 2, 2, and 3.The prime factors of 20 are 2, 2, and 5.The common prime factors are 2 and 2, so the greatest common factor is 2 x 2 = 4.The greatest common factor of 12 and 20 is 4
Factors of 20:1,2,4,5,10,20Factors of 65:1,5,13,65The common factors are 1 and 5.