Greatest Common Factor of 77, 40, 688

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

• Greatest Common Factor of 77, 40, 688 by common division method
• Greatest Common Factor of 77, 40, 688 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 688

List of positive integer factors of 688 that divides 688 without a remainder.

1,2,4,8,16,43,86,172,344,688

Greatest Common Factor

We found the factors 77,40,688 . The biggest common factor number is the GCF number.
So the greatest common factor 77,40,688 is 1.

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

• GCF of 27, 85, 450
• GCF of 21, 14, 957
• GCF of 54, 25, 135
• GCF of 92, 14, 314
• GCF of 29, 82, 629

1. What is the GCF of 77, 40, 688?

Answer: GCF of 77, 40, 688 is 1.

2. How to Find the GCF of 77, 40, 688

Answer: Greatest Common Factor(GCF) of 77, 40, 688 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 40, 688) = 1.