can anybody tell a trick to find LCM and HCF ??
Answers
Answer:
1) how to find lcm?
One way to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.
how to find hcm?
The highest common factor is found by multiplying all the factors which appear in both lists: So the HCF of 60 and 72 is 2 × 2 × 3 which is 12. The lowest common multiple is found by multiplying all the factors which appear in either list: So the LCM of 60 and 72 is 2 × 2 × 2 × 3 × 3 × 5 which is 360.
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Answer:
LCM and HCF Shortcut Tricks and Formulas
Step2 : LCM = The product of highest powers of all prime factors. ...
18 = 2 χ 32. ...
Step2 : LCM = The product of highest powers of all prime factors. ...
Step2 : HCF is the product of all common prime factors using the least power of each common prime factor. ...
Example 2: Find out LCM of 25,310.