Question

find the HCF of 198 and 78 find their LCM​

Answer 1

Answer:

198 = 2×3×3×11

78 = 2×3 ×13

Here,

2 and 3 are common

so,

HCF =2×3

HCF = 6.

LCM = 2×3×3×11×13

LCM = 2574

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Answer 2

Answer:

1. factors of 198=2×3×3×11=2×3²×11

• factors of 78= 2×3×13
• hcf=product of common terms with lowest power
• hcf=2×3=6
• lcm =product of prime factors with highest power
• lcm=3²×2×11×13=2574

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