Greatest Common Factor of 397, 643, 428

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

• Greatest Common Factor of 397, 643, 428 by common division method
• Greatest Common Factor of 397, 643, 428 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 397

List of positive integer factors of 397 that divides 397 without a remainder.

1,397

Factors of 643

List of positive integer factors of 643 that divides 643 without a remainder.

1,643

Factors of 428

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

1,2,4,107,214,428

Greatest Common Factor

We found the factors 397,643,428 . The biggest common factor number is the GCF number.
So the greatest common factor 397,643,428 is 1.

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

• GCF of 608, 255, 661
• GCF of 822, 804, 727
• GCF of 198, 832, 983
• GCF of 124, 781, 729
• GCF of 704, 830, 635

1. What is the GCF of 397, 643, 428?

Answer: GCF of 397, 643, 428 is 1.

2. How to Find the GCF of 397, 643, 428

Answer: Greatest Common Factor(GCF) of 397, 643, 428 = 1

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

Step 2: Then multiply all the prime factors GCF(397, 643, 428) = 1.