Question

Find the H. C. F of 210, 240 and 360 by prime factorisation method.
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Answer 1

Step-by-step explanation:

instructions to find the GCF of 210, 240 and 360 are the next:

1. Decompose all numbers into prime factors

210 2 105 3 35 5 7 7 1 240 2 120 2 60 2 30 2 15 3 5 5 1 360 2 180 2 90 2 45 3 15 3 5 5 1

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

Prime factors of 210 = 2 . 3 . 5 . 7

Prime factors of 240 = 24 . 3 . 5

Prime factors of 360 = 23 . 32 . 5

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2 , 3 , 5

Common prime factors with the lowest exponent: 21, 31, 51

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 = 21. 31. 51 = 30

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Answer 2

❣️❣️HEYA❣️❣️

Above is the picture and the HCF is 30.

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