66, 90, & 115
Reduce each number to its prime factors.
Hence
66 = 11,3,2
90 = 18,6 = 3,6,6 = 3,3,3,2,2
115 = 5,23
The HCF between 66, & 90 is 3,2 = 6
There is no common factor between 115 and 66,90.
hi
What?
The HCF of 4 and 90 is 2.
The GCF is 18.
The GCF is 30.
HCF(160, 90) = 10.
Factors of 24: 1,2,3,4,6,8,12 and 24. Factors of 90: 1,2,3,5,9,10,18,30,45 and 90. The HCF (highest common factor) is 3.
The hcf is 15.
55 - 1, 5, 11, 55 115 - 1, 5, 23, 115 the HCF is 5
The HCF of 28 and 90 is 2
6
30
15
18