Greatest Common Factor of 2, 7, 70, 77

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

• Greatest Common Factor of 2, 7, 70, 77 by common division method
• Greatest Common Factor of 2, 7, 70, 77 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 2

List of positive integer factors of 2 that divides 2 without a remainder.

1,2

Factors of 7

List of positive integer factors of 7 that divides 7 without a remainder.

1,7

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 77

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

1,7,11,77

Greatest Common Factor

We found the factors 2,7,70,77 . The biggest common factor number is the GCF number.
So the greatest common factor 2,7,70,77 is 1.

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

• GCF of 2, 6, 77, 70
• GCF of 2, 1, 20, 25
• GCF of 9, 5, 86, 16
• GCF of 8, 8, 91, 47
• GCF of 5, 3, 82, 89

1. What is the GCF of 2, 7, 70, 77?

Answer: GCF of 2, 7, 70, 77 is 1.

2. How to Find the GCF of 2, 7, 70, 77

Answer: Greatest Common Factor(GCF) of 2, 7, 70, 77 = 1

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

Step 2: Then multiply all the prime factors GCF(2, 7, 70, 77) = 1.