Greatest Common Factor of 28, 80, 48, 643

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

• Greatest Common Factor of 28, 80, 48, 643 by common division method
• Greatest Common Factor of 28, 80, 48, 643 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

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

Factors of 643

List of positive integer factors of 643 that divides 643 without a remainder.

1,643

Greatest Common Factor

We found the factors 28,80,48,643 . The biggest common factor number is the GCF number.
So the greatest common factor 28,80,48,643 is 1.

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

• GCF of 58, 19, 45, 177
• GCF of 26, 13, 19, 135
• GCF of 29, 22, 25, 247
• GCF of 47, 62, 73, 391
• GCF of 88, 84, 21, 531

1. What is the GCF of 28, 80, 48, 643?

Answer: GCF of 28, 80, 48, 643 is 1.

2. How to Find the GCF of 28, 80, 48, 643

Answer: Greatest Common Factor(GCF) of 28, 80, 48, 643 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 80, 48, 643) = 1.