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JudyThe highest common factor (HCF) of 28, 63, and 91 is the largest number that divides all three numbers without leaving a remainder. To find the HCF, you can first find the prime factors of each number: 28 = 2^2 * 7, 63 = 3^2 * 7, and 91 = 7 * 13. Then, identify the common prime factors among the three numbers, which in this case is 7. Therefore, the HCF of 28, 63, and 91 is 7.
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What is the highest common factor of 441 and 378?
To find the highest common factor of 441 and 378, we first need to factorize both numbers. The factors of 441 are 3 x 3 x 7 x 7, and the factors of 378 are 2 x 3 x 3 x 3 x 7. The common factors between the two numbers are 3 x 3 x 7, which equals 63. Therefore, the highest common factor of 441 and 378 is 63.
What is the greatest common factor of 28 and 63?
The greatest common factor (GCF) of two numbers is the largest number that divides evenly into both numbers. To find the GCF of 28 and 63, we need to list the factors of each number. The factors of 28 are 1, 2, 4, 7, 14, and 28, while the factors of 63 are 1, 3, 7, 9, 21, and 63. The largest number that appears in both lists is 7, so the GCF of 28 and 63 is 7.
What is the greatest common factor of 28 42 and 63?
To find the greatest common factor (GCF) of 28, 42, and 63, we first need to find the factors of each number. The factors of 28 are 1, 2, 4, 7, 14, and 28. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 63 are 1, 3, 7, 9, 21, and 63. The GCF of 28, 42, and 63 is the largest number that appears in the factor lists of all three numbers, which is 7.
What are the common factors of 28 and 63?
The common factors of 28 and 63 are: 1 and 7
What is the greatest common factor of 63 and 175?
The Greatest Common Factor of 175 and 63 is 7.
