find the HCF and LCM of 15,12and21 using prime factorisation with solution please is type se solve kr ke do ki koi ise apne exam main likh sake
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Answered by
1
Step-by-step explanation:
12=2×2×3.
15=5×3.
21=7×3.
HCF=3.
LCM=2²×3×5×7=420.
Answered by
1
Answer:
15 = 3 × 5
12 = 2 × 2 ×3
21 = 3 × 7
HCF = 3
LCM = 5× 4× 7 ×5 = 420
this is the correct answer....
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