Mathematics for IGCSE & O level - Number (Section 3 - No. 24)
What is the HCF of 260 and 300?
20
10
5
60
Giải thích
The prime factorisation of 260 is 2 x 2 x 5 x 13 and the prime factorisation of 300 is 2 x 2 x 3 x 5 x 5. The HCF is therefore 2 x 2 x 5 = 20