Greatest Common Factor of 285, 123, 428

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

• Greatest Common Factor of 285, 123, 428 by common division method
• Greatest Common Factor of 285, 123, 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 285

List of positive integer factors of 285 that divides 285 without a remainder.

1,3,5,15,19,57,95,285

Factors of 123

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

1,3,41,123

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 285,123,428 . The biggest common factor number is the GCF number.
So the greatest common factor 285,123,428 is 1.

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

• GCF of 587, 660, 771
• GCF of 320, 742, 937
• GCF of 117, 299, 100
• GCF of 704, 562, 501
• GCF of 914, 746, 553

1. What is the GCF of 285, 123, 428?

Answer: GCF of 285, 123, 428 is 1.

2. How to Find the GCF of 285, 123, 428

Answer: Greatest Common Factor(GCF) of 285, 123, 428 = 1

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

Step 2: Then multiply all the prime factors GCF(285, 123, 428) = 1.