find the H.C.F and L.C.M of 15,30,90
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Answer:
The LCM of 15, 30, and 90 is the product of all prime numbers on the left, i.e. LCM(15, 30, 90) by division method = 2 × 3 × 3 × 5 = 90.
LCM of 15, 30, and 90 is 90.
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Step-by-step explanation:
HCF of 15,30, 90
factors of
15=3×5
30=3×5×2
90=3×5×2×3
The common factor are 3 and 5 i.e.15
HCF of 15, 30, 90 is 15
then,
LCM of 15, 30, 90 is 90
[2×3×5×3=90]
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