Advertisement Remove all ads

Using prime factorization, find the HCF and LCM of  12,15, 21 . - Mathematics

Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads

Using prime factorization, find the HCF and LCM of  12,15, 21 .

Advertisement Remove all ads

Solution

12 = 2 × 2 × 3 = 22 × 3
15 = 3 × 5
21 = 3 × 7
HCF = product of smallest power of each common prime factor in the numbers = 3
LCM = product of greatest power of each prime factor involved in the numbers

= 22 × 3 × 5 × 7 = 420

Concept: Euclid’s Division Lemma
  Is there an error in this question or solution?

APPEARS IN

Video TutorialsVIEW ALL [1]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×