15: 1,3,5,15 20: 1,2,4,5,10,20
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.
The factors of 15 are 1, 3, 5, and 15 The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60 The common factors of 15 and 60 are 1, 3, 5, and 15
The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15. You can also determine the greatest common factor from the prime factors. The prime factors of 45 are 3, 3, and 5. The prime factors of 60 are 2, 2, 3, and 5. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.
Factors of 45: 1, 3, 5, 9, 15, 45.Factors of 55: 1, 5, 11, 55.Factors of 20: 1, 2, 4, 5, 10, 20.GCF (45, 55, 20) = 5
One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 15 are 1, 3, 5, and 15.The factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, and 100.The common factors are 1 and 5. Therefore, the greatest common factor is 5.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 15 are 3 and 5.The prime factors of 100 are 2, 2, 5, and 5.The prime factors in common are 5, so the greatest common factor is 5.ANSWER: 5The GCF is 5.
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.
The common factors are: 1, 5
The common factor of 15, 16, and 20 is just 1
The common factors are: 1, 5.
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 common factors are: 1, 5.
The only common factor of 15, 18, 20, and 50 is 1.
5
1 and 5.
1 and 5.
1 and 5 are.By an odd coincidence, those same numbers arealso the lowest common factors of 15, 10 and 20 .
To find the HCF, you first have to express both numbers as the product of their prime factors: 15 = 3x5 20 = 2x2x5 The next step is to identify any common prime factors. In this case both numbers have a 5 as a prime factor. Therefore the HCF of 15 and 20 is 5.