Greatest Common Factor of 28, 50, 638

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

• Greatest Common Factor of 28, 50, 638 by common division method
• Greatest Common Factor of 28, 50, 638 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 28

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

1,2,4,7,14,28

Factors of 50

List of positive integer factors of 50 that divides 50 without a remainder.

1,2,5,10,25,50

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Greatest Common Factor

We found the factors 28,50,638 . The biggest common factor number is the GCF number.
So the greatest common factor 28,50,638 is 2.

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

• GCF of 80, 57, 384
• GCF of 82, 98, 141
• GCF of 70, 30, 728
• GCF of 45, 69, 468
• GCF of 62, 84, 385

1. What is the GCF of 28, 50, 638?

Answer: GCF of 28, 50, 638 is 2.

2. How to Find the GCF of 28, 50, 638

Answer: Greatest Common Factor(GCF) of 28, 50, 638 = 2

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

Step 2: Then multiply all the prime factors GCF(28, 50, 638) = 2.