Prime factors of 24 are 2 x 2 x 2 x 3, or 23 x 3
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Divide by 2 and 3. 1,2,3,4,6,8,12,24
It is: 2
To find the highest common factor of two numbers you first need to break them down into their prime factors. In this case: 24 = 2x2x2x3 28 = 2x2x7 The next step is to identify the common factors. In this case, both numbers have two 2s as a factor. We multiply these together to get the HCF: 2x2=4 Thus 4 is the highest common factor of 24 and 28.
The greatest prime factor of both numbers is 3
Prime factors of 36 are: 2^2 and 3^2 Prime factors of 24 are: 2^3 and 3 Prime factor of 32 is: 2^5 Multiply the highest prime factors: 3^2 times 2^5 = 288 which is the LCM