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What are the common factors of 54 and 63?
The common factors of 54 and 63 are: 1, 3, and 9
What is the greatest common factor of 54 and 63?
The GCF of 54 and 63 is 9 The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. The factors of 63 are 1, 3, 7, 9, 21, and 63. The factors they have in common are 1, 3, and 9. Therefore, 9 is the greatest common factor. The factors can also be determined from the prime factors. The prime factors of 54 are 2, 3, 3, and 3. The prime factors of 63 are 3, 3, and 7. The prime factors they have in common are 3 and 3, so the greatest common factor is 3 x 3 = 9.
What are the first fifteen multiples of 9?
9, 18, 27, 36, 45, 54, 63, 72, 8190, 99, 108, 117, 126, 1359, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135
What is the greatest common factor of 63 81 and 99?
The greatest common factor of 63, 81, and 99 is 9.The prime factorization of 63 is 7*9.The prime factorization of 81 is 9*9.The prime factorization of 99 is 11*9.Thus, the greatest of the common factors of 9.
Multiples of 9 that are less than 100?
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99.
