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What is a prime factor tree for 63?
63=21x3=3x7x3
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
What is the LCM of 28 63 and 91?
Oh, dude, the least common multiple (LCM) of 28, 63, and 91 is 252. You just gotta find the prime factors of each number and then take the highest power of each prime factor that appears in any of the numbers. It's like a math puzzle, but with less excitement.
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.
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.
