7 is a factor of 28 because 4 x 7 equals 28. 7 is a factor of 63 because 9 x 7 = 63. That makes 7 a common factor of 28 and 63. The factors of 28 that are larger than 7 are 14 and 28. The factors of 63 that are larger than 7 are 9, 21 and 63. Since none of those numbers are the same, that makes 7 the greatest common factor of 28 and 63.
The same as the greatest common factor of 35 and 28 (where 28 is the remainder of the division of 63 by 35).
Factors of 28: 1, 2, 4, 7, 14, 28Factors of 63: 1, 3, 7, 9, 21, 63Factors of 49: 1, 7, 49GCF (28, 63, 49) = 7
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.
28 = 7 x 2 x 2
7
It is: 7
The common prime factor of 56 and 63 is 7.
7 is a factor of 28 because 4 x 7 equals 28. 7 is a factor of 63 because 9 x 7 = 63. That makes 7 a common factor of 28 and 63. The factors of 28 that are larger than 7 are 14 and 28. The factors of 63 that are larger than 7 are 9, 21 and 63. Since none of those numbers are the same, that makes 7 the greatest common factor of 28 and 63.
The greatest prime factor of 40 is 5. The greatest prime factor of 63 is 7. They do not have any prime factors in common.
The GCF of 28 and 63 is 7.
1, 3, 7, 9, 21, 63 3 and 7 are prime.
It is 7 because the product of its prime factors are: 3*3*7 = 63
The Greatest Common Factor of 28, 42, 63: 7
7 since 7 goes into 63 and 140 evenly and 7 is a prime.
The greatest common factor of the numbers 28, 35 and 63 is 7.
The GCF of 28, 42 and 63 is 7.The GCF is 7.