a) find the hcf and lcm of 8,6,5,20 this question is of class 4th
b) find the hcf and lcm of 7,5,6,4 this is also of class 4th
answer the question in detail that how you solve this
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20
2|8,6,5,20
2|4,3,5,10
2|2,3,5,5
|1,3,5,5
2×2×2×3×5×5
= 600
LCM = 600
HCF = 1
because 5 is a prime number
it has factors = 1,5
______________________
2|7,5,6,4
2|7,5,3,2
|7,5,3,1
2×2×7×5×3
= 420
LCM = 420
HCF = 1
because 5 and 7 are prime number
it has factors =
5= 1,5
7= 1,7
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0
Answer:
2 and 210
Step-by-step explanation:
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