0
The GCF of 21 and 45 is 3.
One way to determine the greatest common factor is to find all the factors of the numbers and compare them.
The factors of 21 are 1, 3, 7, and 21.
The factors of 45 are 1, 3, 5, 9, 15, and 45.
The common factors are 1 and 3. Therefore, the greatest common factor is 3.
The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.
The prime factors of 21 are 3 and 7.
The prime factors of 45 are 3, 3, and 5.
The prime factors in common are a single 3, so the greatest common factor is 3.
Add your answer:
Earn +20 pts
What is the greatest common factor of 45 and 225?
The greatest common factor of 45 and 225 is 15.The GCF is: 45
Find the Greatest Common Factor of 45 and 65?
The Greatest Common Factor of 45, 65 is 5.
What is the greatest common factor of 26 and 45?
The greatest common factor of 26 and 45 is 1.
What is the greatest common factor of 8 and 45?
The greatest common factor of 8 and 45 is 1. The numbers 8 and 45 have no prime factors in common.
What is the greatest common factor of 90 30 45?
The greatest common factor of 90 , 30 , 45 = 15
What is the greatest common factor between 45 and 21?
It's 3
What is the greates common factor of 48 and 21?
The GCF of 21, 45, and 48 is: 3
What is the greatest common factor of 45 and 175?
The greatest common factor of 45 and 175 is 5.
What is the greatest common factor of 45 and 225?
The greatest common factor of 45 and 225 is 15.The GCF is: 45
What are the greatest common factor of 135 225 and 45?
The greatest common factor of 135 , 225 , 45 = 45
What is the greatest common factor of 45 and 930?
The GCF (Greatest Common Factor) of 45 and 930 is: 15
Find the Greatest Common Factor of 45 and 65?
The Greatest Common Factor of 45, 65 is 5.
What is the greatest common factor of 27 and 45 and 90?
The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.
What is the greatest common factor of 45 and 115?
The greatest common factor is 5.
What is the greatest common factor of 26 and 45?
The greatest common factor of 26 and 45 is 1.
What is the greatest common factor of 90 30 45?
The greatest common factor of 90 , 30 , 45 = 15
Greatest common factor of 27and 45?
The greatest common factor of the numbers 27 and 45 is 9.
