Greatest Common Factor of 80, 67, 56, 642

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

• Greatest Common Factor of 80, 67, 56, 642 by common division method
• Greatest Common Factor of 80, 67, 56, 642 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 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 67

List of positive integer factors of 67 that divides 67 without a remainder.

1,67

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Greatest Common Factor

We found the factors 80,67,56,642 . The biggest common factor number is the GCF number.
So the greatest common factor 80,67,56,642 is 1.

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

• GCF of 37, 28, 84, 441
• GCF of 10, 40, 47, 265
• GCF of 30, 41, 78, 212
• GCF of 61, 42, 69, 232
• GCF of 84, 65, 30, 185

1. What is the GCF of 80, 67, 56, 642?

Answer: GCF of 80, 67, 56, 642 is 1.

2. How to Find the GCF of 80, 67, 56, 642

Answer: Greatest Common Factor(GCF) of 80, 67, 56, 642 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 67, 56, 642) = 1.