Greatest Common Factor of 77, 28, 13, 168

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

• Greatest Common Factor of 77, 28, 13, 168 by common division method
• Greatest Common Factor of 77, 28, 13, 168 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 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

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 168

List of positive integer factors of 168 that divides 168 without a remainder.

1,2,3,4,6,7,8,12,14,21,24,28,42,56,84,168

Greatest Common Factor

We found the factors 77,28,13,168 . The biggest common factor number is the GCF number.
So the greatest common factor 77,28,13,168 is 1.

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

• GCF of 46, 86, 63, 771
• GCF of 66, 19, 60, 264
• GCF of 75, 78, 83, 270
• GCF of 60, 86, 53, 996
• GCF of 74, 93, 37, 101

1. What is the GCF of 77, 28, 13, 168?

Answer: GCF of 77, 28, 13, 168 is 1.

2. How to Find the GCF of 77, 28, 13, 168

Answer: Greatest Common Factor(GCF) of 77, 28, 13, 168 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 28, 13, 168) = 1.