Find the highest common factor (HCF) of 28 and 70 (2) (b) Find the lowest common multiple (LCM) of 28 and 105 (2)
Exam No:4MA1_1F_que_20200305 Year:2020 Question No:IGCSE&ALevelMathematics2020IG1770
Answer:

Knowledge points:
1: Numbers and the number system
Solution:
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