Question

find the lcm and hcf of the following integers 2,15 and 21 by applying the prime factorsation method​

Answer 1

Step-by-step explanation:

15=3×5

21=7×3

hcf= highest common factor =3

lcm=3×5×7=105

hope this helps

Answer 2

Answer:

210

Step-by-step explanation:

2 = 1 x 2

15 = 1 x 3 x 5

21 = 1 x 3 x 7

HCF(2,15,21) = 1

LCM(2,15,21) = 1 x 2 x 3 x 5 x 7 = 210

Hope this helps.....