What is the difference between lcm and hcf of the number 20 30 40?
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Step-by-step explanation
lcm of 20,30 and 40
=>prime factoristaion of 20 = 2*2*5
=>prime factoristaion of 30 = 2*3*5
=>prime factoristaion of 40 = 2*2*2*5
lcm = 2*2*2*5*3
= 120
hcf of 20 30 40
=>factors of 20 =1,2,4,5,10,20
=>factors of 30 = 1, 2, 3, 5, 6, 10, 15, 30
=> factors of 50 = 1, 2, 5, 10, 25, 50
=>10
difference = lcm -hcf
= 120 -10
=110
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