Greatest Common Factor of 28, 90, 76, 620

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

• Greatest Common Factor of 28, 90, 76, 620 by common division method
• Greatest Common Factor of 28, 90, 76, 620 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 620

List of positive integer factors of 620 that divides 620 without a remainder.

1,2,4,5,10,20,31,62,124,155,310,620

Greatest Common Factor

We found the factors 28,90,76,620 . The biggest common factor number is the GCF number.
So the greatest common factor 28,90,76,620 is 2.

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

• GCF of 54, 47, 87, 960
• GCF of 18, 37, 27, 718
• GCF of 59, 87, 30, 720
• GCF of 36, 42, 58, 847
• GCF of 77, 46, 81, 485

1. What is the GCF of 28, 90, 76, 620?

Answer: GCF of 28, 90, 76, 620 is 2.

2. How to Find the GCF of 28, 90, 76, 620

Answer: Greatest Common Factor(GCF) of 28, 90, 76, 620 = 2

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

Step 2: Then multiply all the prime factors GCF(28, 90, 76, 620) = 2.