Find lcm and hcf of 56, 78, 90 by division method
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56)78(1
56
____
22)56(2
44
____
12)22(1
12
___
10)12(1
10
___
x 2)10(5
10
___
xx
2)90(45
8
__
10
10
___
xx
HCF =2
56
____
22)56(2
44
____
12)22(1
12
___
10)12(1
10
___
x 2)10(5
10
___
xx
2)90(45
8
__
10
10
___
xx
HCF =2
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