Question

find the LCM by division method 153,34,85​

Answer 1

Step-by-step explanation:

Decompose all numbers into prime factors

34 2 17 17 1 85 5 17 17 1 153 3 51 3 17 17 1

2. Write all numbers as the product of its prime factors

Prime factors of 34 = 2 . 17

Prime factors of 85 = 5 . 17

Prime factors of 153 = 32 . 17

3. Choose the common prime factors with the lowest exponent

Common prime factors: 17

Common prime factors with the lowest exponent: 171

4. Calculate the Greatest Common Factor or GCF

Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.

GCF = 171 = 17

Answer 2

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