Greatest Common Factor of 28, 13, 202, 280

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

• Greatest Common Factor of 28, 13, 202, 280 by common division method
• Greatest Common Factor of 28, 13, 202, 280 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 202

List of positive integer factors of 202 that divides 202 without a remainder.

1,2,101,202

Factors of 280

List of positive integer factors of 280 that divides 280 without a remainder.

1,2,4,5,7,8,10,14,20,28,35,40,56,70,140,280

Greatest Common Factor

We found the factors 28,13,202,280 . The biggest common factor number is the GCF number.
So the greatest common factor 28,13,202,280 is 1.

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

• GCF of 32, 76, 172, 685
• GCF of 86, 22, 909, 642
• GCF of 99, 25, 732, 771
• GCF of 52, 46, 497, 809
• GCF of 90, 30, 134, 925

1. What is the GCF of 28, 13, 202, 280?

Answer: GCF of 28, 13, 202, 280 is 1.

2. How to Find the GCF of 28, 13, 202, 280

Answer: Greatest Common Factor(GCF) of 28, 13, 202, 280 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 13, 202, 280) = 1.