Greatest Common Factor of 77, 70, 18, 71

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

• Greatest Common Factor of 77, 70, 18, 71 by common division method
• Greatest Common Factor of 77, 70, 18, 71 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 70

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

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

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Greatest Common Factor

We found the factors 77,70,18,71 . The biggest common factor number is the GCF number.
So the greatest common factor 77,70,18,71 is 1.

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

• GCF of 60, 76, 73, 38
• GCF of 61, 21, 25, 36
• GCF of 38, 36, 38, 38
• GCF of 99, 79, 58, 45
• GCF of 45, 28, 97, 70

1. What is the GCF of 77, 70, 18, 71?

Answer: GCF of 77, 70, 18, 71 is 1.

2. How to Find the GCF of 77, 70, 18, 71

Answer: Greatest Common Factor(GCF) of 77, 70, 18, 71 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 70, 18, 71) = 1.