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5 and 10 or 5 and any multiple of 5 for a start
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What is the gcf of the numbers 155 and 350?
The GCF is 5.
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 gcf of 40 and 60 and 80?
The gcf is the greatest common factor. A way of finding the gcf of three numbers is to find the gcf of the first two and then finding the gcf of that number and the third number. Because of the unique prime factorization theorem, the greatest common factor will be a product of some of the prime factors in either number. The prime factorization of 40 is 2^3 * 5 and the prime factorization of 60 is 2^2 * 3 * 5, so the gcf is going to be what is in both, or, in this case, 2^2 * 5. Th prime factorization of 80 is 2^4 * 5 and so gcf of all three numbers is 2^2 * 5, or 20.
What 2 numbers have a GCF of 3?
2 numbers have a gcf of 3 = 3 & 6, 6 &9,...
What is the GCF of the numbers 5 and 8?
The GCF of 5 and 8 is 1. The LCM is 40.
What is the GCF of numbers 50 40 and 45?
The GCF is 2.
What is the GCF of 102 and 50?
factor out both numbers to get 102=2*3*17 50=2*5*5 the GCF is 2
What is the GCF for these numbers 3 and 5?
The GCF is 1.
What are 2 numbers that have a GCF of 5?
10 and 15
What is the greatest common factor of 2 numbers is 5?
The GCF of 5 and 10 is 5.
What is the HCF for the number 4?
the GCF of 4 3 5 is 1
What is the GCF of two numbers in 5?
The GCF of 5 and 10 is 5.
What is the gcf of the numbers 155 and 350?
The GCF is 5.
What is the GCF of the numbers 15 and 50?
The GCF is 5.
What is the gcf of 5 and 20 and 35?
The GCF of these three numbers is 5.
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.
The GCF of two numbers is 5. the LCM is 90 the numbers add up to 55 what are the 2 numbers?
45 and 10
