Greatest Common Factor of 45, 81, 688, 676

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

• Greatest Common Factor of 45, 81, 688, 676 by common division method
• Greatest Common Factor of 45, 81, 688, 676 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 45

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

1,3,5,9,15,45

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

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

Factors of 676

List of positive integer factors of 676 that divides 676 without a remainder.

1,2,4,13,26,52,169,338,676

Greatest Common Factor

We found the factors 45,81,688,676 . The biggest common factor number is the GCF number.
So the greatest common factor 45,81,688,676 is 1.

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

• GCF of 40, 91, 147, 662
• GCF of 94, 70, 434, 187
• GCF of 62, 29, 828, 723
• GCF of 30, 20, 263, 278
• GCF of 94, 96, 992, 763

1. What is the GCF of 45, 81, 688, 676?

Answer: GCF of 45, 81, 688, 676 is 1.

2. How to Find the GCF of 45, 81, 688, 676

Answer: Greatest Common Factor(GCF) of 45, 81, 688, 676 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 81, 688, 676) = 1.