Question

Using prime factorisation, find the HCF and LCM of 144, 198​

Answer 1

Answer:

144=2×2×2×2×3×3

198=2×3×3×11

LCM(144,198) = Product of greatest power of each factor

= $2^{4}$×$3^{2}$×11

= 1,584

HCF(144,198) = Product of lowest power of each common factor

= 2×$3^{2}$

= 18

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

• 144 = 2x2x3x3x3
• 198=  2x3x3x11
• HCF = 2x2x3
• HCF = 18