Question

3. The LCM of 60 and 90 is 180, find their HCF.​

Answer 1

Answer:

20

Step-by-step explanation:

The highest common factor is 20. We can find this using prime factorization of each number. 60=5*3*2*2 and 40=5=2*2*2. Then we see which prime factors they have in common. In this case, the common factors are 5*2*2, which equals 20.

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Answer 2

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