find the HCF of 30, 72 and 432 using prime factorization and hence find the LCM of( 30, 72, 432 )and 20
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Step-by-step explanation:
30=15*=3*5*2
72=18*4=2*9*4=2*3*3*2*2
432=2*216=2*2*108=2*2*2*54=2*2*2*2*27=2*2*2*2*3*3*3
HCF is 6=3*2
20=2*2*5
LCM is= 3*24*2*5*3=720*3=2160
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