Q. What is the greatest common factor of 35y4,14y4, and 63y4 ?
List prime factors: List the prime factors of each number without the variable part.Prime factors of 35: 5×7Prime factors of 14: 2×7Prime factors of 63: 3×3×7
Identify common factors: Identify the common prime factors from the prime factorization of the numbers.The common prime factor is 7.
Include variable part: Since the variable part is the same for all terms y4, we include it in the GCF.The variable part is y4.
Multiply to find GCF: Multiply the common prime factor by the variable part to find the GCF. GCF = 7×y4
Verify GCF: Verify that the GCF is indeed a factor of all three terms.7y435y4=5y0=57y414y4=2y0=27y463y4=9y0=9Since all results are whole numbers, the GCF is correct.
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