Find the lcm of the following by the prime factorization method
a]12,42
b]45,70,90
c] 36,48,60
d]22,44,66
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Answer:
a.12=2×2×3
42=7×3×2
LCM=2
b.45=5×3×3
70=7×5×2
90=3×3×5×2
LCM=5
c.36=2×2×3×3
48=2×2×2×2×3
60=2×3×2×5
LCM=2
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