Find the HCF and LCMof 21, 15 and 12 using the prime factorizationmeth

1.	Find the HCF and LCMof 21, 15 and 12 using the prime factorizationmethod.9.
Answer» Explanation : 21 = 3×7 15 = 3×5 12 = 2×2×3 HCF means common factor of all the numbers so HCF = 3 LCM is the least common multiple of all 3 numbers so LCM = 3×7×5×2×2 = 420 Solution : HCF = 3 , LCM = 420 If you find this answer helpful then like it

Find the HCF and LCMof 21, 15 and 12 using the prime factorizationmethod.9.

Answer»

Explanation : 21 = 3×7 15 = 3×5 12 = 2×2×3

HCF means common factor of all the numbers so HCF = 3 LCM is the least common multiple of all 3 numbers so LCM = 3×7×5×2×2 = 420

Solution : HCF = 3 , LCM = 420

If you find this answer helpful then like it