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 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.
15: 1,3,5,15 20: 1,2,4,5,10,20
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.