Greatest Common Factor of 721, 661, 687

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

• Greatest Common Factor of 721, 661, 687 by common division method
• Greatest Common Factor of 721, 661, 687 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 721

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

1,7,103,721

Factors of 661

List of positive integer factors of 661 that divides 661 without a remainder.

1,661

Factors of 687

List of positive integer factors of 687 that divides 687 without a remainder.

1,3,229,687

Greatest Common Factor

We found the factors 721,661,687 . The biggest common factor number is the GCF number.
So the greatest common factor 721,661,687 is 1.

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

• GCF of 488, 252, 769
• GCF of 381, 276, 712
• GCF of 994, 595, 488
• GCF of 639, 452, 494
• GCF of 854, 703, 936

1. What is the GCF of 721, 661, 687?

Answer: GCF of 721, 661, 687 is 1.

2. How to Find the GCF of 721, 661, 687

Answer: Greatest Common Factor(GCF) of 721, 661, 687 = 1

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

Step 2: Then multiply all the prime factors GCF(721, 661, 687) = 1.