Greatest Common Factor of 690, 428, 646

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

• Greatest Common Factor of 690, 428, 646 by common division method
• Greatest Common Factor of 690, 428, 646 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 690

List of positive integer factors of 690 that divides 690 without a remainder.

1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690

Factors of 428

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

1,2,4,107,214,428

Factors of 646

List of positive integer factors of 646 that divides 646 without a remainder.

1,2,17,19,34,38,323,646

Greatest Common Factor

We found the factors 690,428,646 . The biggest common factor number is the GCF number.
So the greatest common factor 690,428,646 is 2.

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

• GCF of 760, 916, 968
• GCF of 442, 670, 801
• GCF of 935, 334, 552
• GCF of 925, 544, 170
• GCF of 432, 421, 586

1. What is the GCF of 690, 428, 646?

Answer: GCF of 690, 428, 646 is 2.

2. How to Find the GCF of 690, 428, 646

Answer: Greatest Common Factor(GCF) of 690, 428, 646 = 2

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

Step 2: Then multiply all the prime factors GCF(690, 428, 646) = 2.