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What is the GCF for these numbers 3 and 5?
The GCF is 1.
What is the GCF of 3and 4and 5?
The only factor that all of these numbers share is 1 since 3 and 5 are prime. So 1 is the gcf of this set of numbers.
What is the greatest common factor of 4312 and 3388?
You need at least two numbers to find a GCF. If that's 3 and 15, the GCF is 3.
What is the GCF of the numbers 141 and 192?
The GCF is 3.
Is the greatest common factor always 2 when they are two odd numbers?
No. The GCF of 3 and 5 is 1. The GCF of 3 and 9 is 3.
What are 3 pairs of numbers that have 5 as their GCF?
5, 10 10, 15 5, 15
What 3 pairs of numbers have 5 as the GCF?
5 and 105 and 1510 and 15
What is the GCF of two numbers in 5?
The GCF of 5 and 10 is 5.
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 of the numbers 155 and 350?
The GCF is 5.
How do you find a pair of numbers when the GCF is given?
To find a pair of numbers with a given GCF, take the GCF number and double it. The pair of numbers is the GCF, and two times the GCF. For instance, two numbers with a GCF of 3 are 3 and 6.
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.
