Greatest Common Factor of 428, 667, 21, 829

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

• Greatest Common Factor of 428, 667, 21, 829 by common division method
• Greatest Common Factor of 428, 667, 21, 829 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 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Factors of 667

List of positive integer factors of 667 that divides 667 without a remainder.

1,23,29,667

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 829

List of positive integer factors of 829 that divides 829 without a remainder.

1,829

Greatest Common Factor

We found the factors 428,667,21,829 . The biggest common factor number is the GCF number.
So the greatest common factor 428,667,21,829 is 1.

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

• GCF of 808, 776, 76, 689
• GCF of 890, 214, 78, 789
• GCF of 572, 443, 95, 866
• GCF of 982, 498, 38, 642
• GCF of 211, 106, 70, 648

1. What is the GCF of 428, 667, 21, 829?

Answer: GCF of 428, 667, 21, 829 is 1.

2. How to Find the GCF of 428, 667, 21, 829

Answer: Greatest Common Factor(GCF) of 428, 667, 21, 829 = 1

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

Step 2: Then multiply all the prime factors GCF(428, 667, 21, 829) = 1.