Question

56, 65 and 85 lcm common division method

Answer 1

$\red{ Finding \: L.C.M \:of \: 56 , 65 \:and \: 85}$

5| 56 , 65 , 85

______________

* * 56 , 13 , 17

Therefore.,

$L.C.M \: 56 , 65 \:and \: 85\\= 5 \times 56 \times 13 \times 17 \\\green {= 61880}$

Second Method:

56 = 2³ × 7

65 = 5 × 13

85 = 5 × 17

LCM of 56, 65 and 85

= 2³ × 5 × 7 × 13 × 17

= 8 × 5 × 7 × 13 × 17

= 61880

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