Greatest Common Factor of 45, 73, 21, 48

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 45, 73, 21, 48 by common division method
• Greatest Common Factor of 45, 73, 21, 48 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 48

List of positive integer factors of 48 that divides 48 without a remainder.

1,2,3,4,6,8,12,16,24,48

Greatest Common Factor

We found the factors 45,73,21,48 . The biggest common factor number is the GCF number.
So the greatest common factor 45,73,21,48 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 61, 71, 39, 95
• GCF of 49, 77, 13, 70
• GCF of 40, 42, 99, 21
• GCF of 79, 60, 71, 72
• GCF of 72, 83, 77, 71

1. What is the GCF of 45, 73, 21, 48?

Answer: GCF of 45, 73, 21, 48 is 1.

2. How to Find the GCF of 45, 73, 21, 48

Answer: Greatest Common Factor(GCF) of 45, 73, 21, 48 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(45, 73, 21, 48) = 1.