find LCM of 180 and 144 with the help of their HCF
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180=2×90
=2×2×45
=2×2×3×15
=2×2×3×3×5
144=2×72
=2×2×36
=2×2×2×28
=2×2×2×2×14
=2×2×2×2×2×7
comman facter =2×2=4=HCF
=2×2×45
=2×2×3×15
=2×2×3×3×5
144=2×72
=2×2×36
=2×2×2×28
=2×2×2×2×14
=2×2×2×2×2×7
comman facter =2×2=4=HCF
santoshjain:
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