Greatest Common Factor of 56, 45, 57, 688

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

• Greatest Common Factor of 56, 45, 57, 688 by common division method
• Greatest Common Factor of 56, 45, 57, 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 56

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

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

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

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 56,45,57,688 . The biggest common factor number is the GCF number.
So the greatest common factor 56,45,57,688 is 1.

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

• GCF of 50, 85, 60, 982
• GCF of 63, 15, 35, 803
• GCF of 17, 55, 14, 547
• GCF of 28, 55, 18, 129
• GCF of 15, 78, 56, 105

1. What is the GCF of 56, 45, 57, 688?

Answer: GCF of 56, 45, 57, 688 is 1.

2. How to Find the GCF of 56, 45, 57, 688

Answer: Greatest Common Factor(GCF) of 56, 45, 57, 688 = 1

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

Step 2: Then multiply all the prime factors GCF(56, 45, 57, 688) = 1.