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Because 7 is a factor of 28 and 63 and 7 is a Prime number.
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Why is 7 the greatest common factor of 28 and 63?
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.
What is the greatest common factor of 28 49 and 63?
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
What is the greatest common factor of 35 and 63 and 84?
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.
What is 28 as the product of its prime factor?
28 = 7 x 2 x 2
What is the product of its prime factor of 28?
2 x 2 x 7 = 28
What is the prime factor of 28 and 63?
7
The number n is a prime factor of 28 and 63 What is the number?
It is: 7
What is the common prime factor of 56 and 63?
The common prime factor of 56 and 63 is 7.
Why is 7 the greatest common factor of 28 and 63?
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.
What is the greatest prime factor of 40 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.
What is largest prime factor of 63?
It is 7 because the product of its prime factors are: 3*3*7 = 63
What are the factor and prime number of 63?
1, 3, 7, 9, 21, 63 3 and 7 are prime.
What are is the greatest common factor of 28 42 and 63?
The Greatest Common Factor of 28, 42, 63: 7
What is the highest common factor of 28 63 and 91?
28 = 2 x 2 x 7 63 = 3 x 3 x 7 91 = 7 x 13 7 is the only common factor so is the highest common factor
Which number is a prime factor of both 63 and 140?
7 since 7 goes into 63 and 140 evenly and 7 is a prime.
What is the greatest common factor of 28 35 63?
The greatest common factor of the numbers 28, 35 and 63 is 7.
What is a prime factor of 63?
3 and 7 both are
