Greatest Common Factor of 680, 425, 639

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

• Greatest Common Factor of 680, 425, 639 by common division method
• Greatest Common Factor of 680, 425, 639 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 680

List of positive integer factors of 680 that divides 680 without a remainder.

1,2,4,5,8,10,17,20,34,40,68,85,136,170,340,680

Factors of 425

List of positive integer factors of 425 that divides 425 without a remainder.

1,5,17,25,85,425

Factors of 639

List of positive integer factors of 639 that divides 639 without a remainder.

1,3,9,71,213,639

Greatest Common Factor

We found the factors 680,425,639 . The biggest common factor number is the GCF number.
So the greatest common factor 680,425,639 is 1.

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

• GCF of 801, 634, 665
• GCF of 161, 331, 888
• GCF of 157, 748, 419
• GCF of 973, 432, 530
• GCF of 245, 985, 208

1. What is the GCF of 680, 425, 639?

Answer: GCF of 680, 425, 639 is 1.

2. How to Find the GCF of 680, 425, 639

Answer: Greatest Common Factor(GCF) of 680, 425, 639 = 1

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

Step 2: Then multiply all the prime factors GCF(680, 425, 639) = 1.