Question

hcf of 60 270 and 390​

Answer 1

Answer:

given

60,270,390

hcf, highest common factor

60=2*2*3*5

270=2*3*3*3*5

390=2*3*5*13

hcf are 2,3,5

=2*3*5

=30

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Answer 2

SOLUTION

TO DETERMINE

The HCF of the numbers 60 , 270 , 390

CONCEPT TO BE IMPLEMENTED

HCF :

For the given two or more numbers HCF is the greatest number that divides each of the numbers

LCM :

For the given two or more numbers LCM is the least number which is exactly divisible by each of the given numbers

EVALUATION

Here the given numbers are 60 , 270 , 390

We now prime factorise the given numbers

60 = 2 × 2 × 3 × 5

270 = 2 × 3 × 3 × 3 × 5

390 = 2 × 3 × 13 × 5

Hence the required HCF

= 2 × 3 × 5

= 30

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