49,70,77 find hcf prime factor method with explain
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following are the steps:-
1. express each number in its prime factors
2. identify the common factor in all 3 cases
3. take out the common factor having least power that is 7¹
4. the final answer must be the product of chosen numbers in the step 3
5. since there are no other common factors having least power, 7 will be the HCF of 49, 70 and 77.
1. express each number in its prime factors
2. identify the common factor in all 3 cases
3. take out the common factor having least power that is 7¹
4. the final answer must be the product of chosen numbers in the step 3
5. since there are no other common factors having least power, 7 will be the HCF of 49, 70 and 77.
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Answer is 7
We first take of 49is 7×49 than we take 70 is 7×10 than we take 77 is 7×11 than we take out c. f is 7
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