Question

Class X-Mathematics
3. Find the HCF and LCM of the following:
i) 2 * 3 * 5
2 x 3² x 71
HCF =
LCM =​

Answer 1

Answer:

i)HCF=1

LCM=30

ii)HCF=1

LCM=1278

Step-by-step explanation:

i)HCF:

2*1

3*1

5*1

1 is the common factor, so HCF=1.

LCM:

Multiplying 1 by 2*3*5 from above, we get our LCM=30.

ii)HCF:

2*1

3*3*1

71*1

1 is the common factor, so HCF=1

LCM:

Multiplying 1 by 2*3*3*71 from above, we get our LCM=1278.