Greatest Common Factor of 821, 428, 123

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

• Greatest Common Factor of 821, 428, 123 by common division method
• Greatest Common Factor of 821, 428, 123 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 821

List of positive integer factors of 821 that divides 821 without a remainder.

1,821

Factors of 428

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

1,2,4,107,214,428

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Greatest Common Factor

We found the factors 821,428,123 . The biggest common factor number is the GCF number.
So the greatest common factor 821,428,123 is 1.

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

• GCF of 586, 589, 894
• GCF of 623, 246, 203
• GCF of 784, 650, 739
• GCF of 734, 657, 264
• GCF of 201, 737, 664

1. What is the GCF of 821, 428, 123?

Answer: GCF of 821, 428, 123 is 1.

2. How to Find the GCF of 821, 428, 123

Answer: Greatest Common Factor(GCF) of 821, 428, 123 = 1

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

Step 2: Then multiply all the prime factors GCF(821, 428, 123) = 1.