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Are 63 84 and 126 relatively prime?


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Answered 2014-10-15 09:57:53

No because they are all composite numbers

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63 = 3x3x7 84 = 2x2x3x7 126 = 2x3x3x7 GCF = 2x2x3x3x7 = 252


The GCF for 63, 84 & 126, is 21.



The LCM of 63 and 84 is 252.


Answer=7 because 7x9=63 7x12=84 7x18=126


No, 45 and 84 are not relatively prime.


Factors of 63: 1, 3, 7, 9, 21, 63.Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.Factors of 126: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126.GCF (63, 84, 126) = 21



84: the prime factors are: 2 3 7 63: the prime factors are: 3 7


The GCF of 63, 84 and 126 is 21. The GCF of 6384 and 126 is 42.


The GCF of 35, 63, and 84 is 7. The prime factorization of 35 is 5*7. The prime factorization of 63 is 3*3*7 The prime factorization of 84 is 2*2*3*7 The GCF of 35, 63, and 84 is thus 7.



21, 42, 63, 84, 105, 126 . . .




21, 42, 63, 84, 105, 126, 147, 168, 189, 210, 231, . . .63, 126, 189, 252, 315, 378, 441, 504, 567, 630, 693, . . .


The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 The factors of 126 are: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126


56 and 84 are both composite numbers, so neither are prime and they are not relatively prime either as they share several factors.


21, 42, 63, 84, 105, 126 . . . infinity.


No. To be relatively prime they could have only the number one as a common factor, but seven is also a common factor that they have.


84 / 126 = 2/3 ~= 0.667


21, 42, 63, 84, 105, 126, 147, 168, 189, 210, 231, . . .


21, 42, 63, 84, 105, 126, 147, 168, 189, 210


21, 42, 63, 84, 105, 126, 147, 168, 189, 210.


21, 42, 63, 84, 105, 126, 147, 168, 189, 210



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