Question

find LCM and HCF by prime factorization 17, 23 and 31​

Answer 1

Answer:

17,23,29 are prime numbers.they have only two factors i.e 1 and itself

factors of 17 =f(17)={1,17}

f(23)={1,23}

f(29)={1,29}

hcf of prime numbers =1

hcf(17,23,29)=1

lcm of prime numbers= product of the numbers

lcm(17,23,29)=17*23*29

2)8=2*2*2

9=3*3

25=5*5

hcf(8,9,25)=1(1 is common factor of each number)

lcm =8*9*25

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