3 x 3 x 5 = 45
2 x 2 x 2 x 7 = 56
No common prime factors, the GCF is 1.
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Prime factorization of 45 = 3x3x5Prime factorization of 60 = 2x2x3x5Prime factorization of 160 = 2x2x2x2x2x5Only common factors are 5 (and 1).Therefore GCF = 5.
45 = 32 x 51
The Greatest common factor of 45 and 210 is 15.The prime factorization of 45 is 3*3*5The prime factorization of 210 is 2*3*5*7The greatest common factor is 3*5 = 15
gcf(75, 45, 90) = 15 Using prime factorization: 75 = 3 x 5² 45 = 3² x 5 90 = 2 x 3² x 5 hcf = 3 x 5 = 15
The GCF is 15 The greatest prime factor in common is 5..