They are 15 and 2145 respectively
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lcm(9, 12) = 36; hcf(9, 12) = 3.
The Least Common Multiple (LCM) for 165 15 40 is 1,320.
65, 130, 195 The LCM is 195.
HCF means the highest common factor of two or more numbers. LCM means the lowest common multiple of two or more numbers.
Write 100 and 120 in their prime compositions in power form: 100 = 223052 120 = 233151 For hcf, take lowest power of each prime across the compositions; for LCM, take highest powers: hcf = 223051 = 4 x 1 x 5 = 20 LCM = 233152 = 8 x 3 x 25 = 600