Greatest Common Factor of 688, 423, 721

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

• Greatest Common Factor of 688, 423, 721 by common division method
• Greatest Common Factor of 688, 423, 721 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 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 423

List of positive integer factors of 423 that divides 423 without a remainder.

1,3,9,47,141,423

Factors of 721

List of positive integer factors of 721 that divides 721 without a remainder.

1,7,103,721

Greatest Common Factor

We found the factors 688,423,721 . The biggest common factor number is the GCF number.
So the greatest common factor 688,423,721 is 1.

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

• GCF of 688, 604, 847
• GCF of 671, 170, 256
• GCF of 427, 687, 413
• GCF of 486, 950, 610
• GCF of 135, 892, 948

1. What is the GCF of 688, 423, 721?

Answer: GCF of 688, 423, 721 is 1.

2. How to Find the GCF of 688, 423, 721

Answer: Greatest Common Factor(GCF) of 688, 423, 721 = 1

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

Step 2: Then multiply all the prime factors GCF(688, 423, 721) = 1.