Question

lcf and hcf of 2,15,21​

Answer 1

HCF is 3

LCM IS 420

hope these will help you.......

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Answer 2

Answer:

LCM is 210

HCF is 1

Step-by-step explanation:

first find factors of all then find how many of these factors common and take them as only one unit then multiply all the units you get LCM

for HCF find the factors common to all the numbers

then multiply them to one