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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 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 15x3 and 18x5?
15*3 = 3*5*3 = 3*3*5 18*5 = 2*3*3*5 = 2*3*3*5 So GCF = numbers that appear in both lists (however many times in both) = 3*3*5 = 45
What 3 pairs of numbers that greatest common factor is 5?
5 and any multiple of 5 5,10 5,15 5,20
What 3 pairs of numbers have 5 as the GCF?
5 and 105 and 1510 and 15
What is the GCF for these numbers 3 and 5?
The GCF is 1.
Which of these numbers is the greatest common factor 15 5 or 10 30 or 60 10 or 35 3 or5?
None of those pairs has a GCF of 15.
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 does it mean if two numbers are relatively prime?
Two numbers are relatively prime if they have no factors in common other than 1. This means their greatest common factor (GCF) is 1. Here are examples of pairs of numbers that are relatively prime: 2, 9 5, 14 13, 998 3, 379 37, 303 691, 701 32, 81 384, 625 Here are examples of pairs of numbers that are not relatively prime: 2, 8 (GCF: 2) 16, 1060 (GCF: 4) 52, 117 (GCF: 13)
What are 3 numbers that have 5 as their gcf?
Try 5, 10 and 15.
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.
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 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.
Explain how to identify the GCF and LCM of pairs of numbers?
Example: 30 and 42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the common factors. 2 x 3 = 6, the GCF. Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the LCM.
