Common factors of 27 and 30 are: 1 and 3.
The highest common factor is 3
The common factors of 27 and 30 are 1, 3, and 9.
The factors of: 27: 1, 3, 9, 27 35: 1, 5, 7, 35 30: 1, 2, 3, 5, 6, 10, 15, 30 Common factors: cf(27, 35): 1 cf(27, 30): 1, 3 cf(35, 30): 1, 5 cf(27, 35, 30): 1 27 = 3^3 35 = 5 x 7 30 = 2 x 3 x 5 The common factors are the factors of their highest common factor: hcf(27, 35) = 1 → cf(27, 35): 1 hcf(27, 30) = 3 → cf(26, 30): 1, 3 hcf(35, 30) = 5 → cf(35, 30): 1, 5 hcf(27, 35, 30) = 1 → cf(27, 35, 30): 1
1 and 3 are common factors of 27 and 30.
6
It is: 6
Common factors of 18, 30, and 48 are: 1, 2, 3, and 6.
3
1 and 3
The GCF is 15.
5 is the HCF
The GCF is 1.