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What is the GCF of 12 21 30?
3 12 = 2^2 x 3 21 = 3 x 7 30 = 2 x 3 x 5 hcf = 3
What is the GFC for 12 and 15 using prime factorization?
2 x 2 x 3 = 12 3 x 5 = 15 The GCF is 3.
How do you use prime factorization to find the gcf of two numbers?
Write the numbers in their prime factorisations. the GCF is the product of the common primes (each time they appear). Example: 30 and 42 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the common factors. 2 x 3 = 6, the GCF Example: 24 and 60 24 = 2 × 2 × 2 × 3 60 = 2 × 2 × 3 × 5 GCF = 2 × 2 × 3 = 12 The prime 2 appears twice in both numbers. If you use the power format of the prime factorisation, the GCF is the product of each of the common primes to the LOWEST power across the numbers. For 24 and 60 this gives: 24 = 2³ × 3 60 = 2² × 3 × 5 → GCF = 2² × 3 = 12 As the lowest power of 2 across the numbers is 2², the lowest power of 3 across the numbers is 3 = 3¹, 5 is not common, but for completeness, 24 = 2³ × 3¹ × 5⁰ since 5⁰ = 1, so the lowest power of the prime 5 across the numbers is 5⁰: → GCF = 2² × 3¹ × 5⁰ = 4 × 3 × 1 = 12.
What is the greatest common factor of 12 and 450 using prime factorization?
2 x 2 x 3 = 12 2 x 3 x 3 x 5 x 5 = 450 2 x 3 = 6, the GCF
What is the GCF of 15 40?
15=1*3*5 40=1*2*2*2*5 gcf=5
What is the highest common factor of 60 and 72?
The GCF of 60 and 72 is 12.60 = 2*2*3*5 = 2^2 * 3 * 572 = 2*2*2*3*3 = 2^3 * 3^2GCF = 2^2 * 3 = 4*3 = 12
What is the greatest common factors of 36 24 and 60?
The greatest common factor of 36 24 and 60 is: 12 36 / 12 = 3 24 / 12 = 2 60 / 12 = 5 You are unable to factor what remains, so it must be 12
What is the gcf of 108 and 420?
The GCF of 420 and 108 is 12. 2 x 2 x 7 x 5 x 3 3 x 3 x 3 x 2 x 2 2x2x3=12 GCF=12
What is the GCF of 12 21 30?
3 12 = 2^2 x 3 21 = 3 x 7 30 = 2 x 3 x 5 hcf = 3
What is the greatest common factor of 60 and 72 and 96?
The greatest common factor (GCF) of a set of numbers is the greatest factor which is common to each number in the set. The GCF of a single number, such as 967260, is the number itself.
What is the GCF of 60 and 72 using prime factorization?
60 5*12=60 5*2*6=60 5*2*2*3=60 72 6*12=72 6*2*6=72 6*2*2*3=72 GCF=12
What is the GCF of 3 5 and 12?
The GCF is 1.
What is the gcf of 36 and 120 using a factor tree?
As drawing a factor tree is not easy here, I'll use brackets to represent the different branches: 36 = (6 × 6) = ((2 × 3) × (2 × 3) = [2] × [2] × [3] × 3 120 = (10 × 12) = ((2 × 5) × (3 × 4)) = ((2 × 5) × (3 × (2 × 2))) = [2] × [2] × 2 × [3] × 5 → gcf(12, 54) = 2 × 2 × 3 = 12
What is the greatest common factor of 12 and 75?
The GCF of 12 and 75 is 3.The prime factorization of 12 is 2*2*3.The prime factorization of 75 is 3*5*5Their greatest common factor is 3.
What is the greatest common factor of 12 30 and 35?
2 x 2 x 3 = 12 2 x 3 x 5 = 30 2 x 3 = 6, the GCF
What is the greatest common factor of 5 and 12?
The GCF of 5 and 12 is 1. Factors of 5 are 1 and 5 Factors of 12 are 1, 2, 3, 4, 6, and 12 So the GCF is 1.
What is the GCF of 12 5 and 6?
The factors of 5 are:1, 5The factors of 6 are:1, 2, 3, 6The factors of 12 are:1, 2, 3, 4, 6, 12The Greatest Common Factor (GCF) is:1
