Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- HCF of 3 and 7
- HCF of 3 and 12
- HCF of 2, 6 and 8
- HCF of 16 and 18
(a)
Factors of 3: 1, 3
Factors of 7: 1, 7
HCF of 3 and 7 =
1 (b)
Factors of 3: 1, 3
Factors of 12: 1, 2, 3, 4, 6, 12
HCF of 3 and 12 =
3 (c)
Factors of 2: 1, 2
Factors of 6: 1, 2, 3, 6
Factors of 8: 1, 2, 4, 8
HCF of 2, 6 and 8 =
2 (d)
Factors of 16: 1, 2, 4, 8, 16
Factors of 18: 1, 2, 3, 6, 9, 18
HCF of 16 and 18 =
2 Answer(s): 1, 3, 2, 2