3 x 3 x 5 = 45
3 x 5 x 5 = 75
45/75 = 3/5
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The greatest common factor of 45 and 75 is 15, because it is the highest number that will divide into 45 and 75 evenly.The prime factorization of 45 is 3*3*5The prime factorization of 75 is 3*5*5The common prime factors are 3*5 = 15, so that is the GCF.The GCF is 15.It is: 15
Prime factors in exponent whenever applicable:- 45 = 32*5 75 = 3*52 155 = 5*31 LCM = 32*52*31 = 6975
3 x 52 = 75
75
The factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225.The prime factorization of 225 is 3 x 3 x 5 x 5.1, 3, 5, 9, 15, 25, 45, 75, 225