Greatest Common Factor of 42, 20, 306, 897

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

• Greatest Common Factor of 42, 20, 306, 897 by common division method
• Greatest Common Factor of 42, 20, 306, 897 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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 306

List of positive integer factors of 306 that divides 306 without a remainder.

1,2,3,6,9,17,18,34,51,102,153,306

Factors of 897

List of positive integer factors of 897 that divides 897 without a remainder.

1,3,13,23,39,69,299,897

Greatest Common Factor

We found the factors 42,20,306,897 . The biggest common factor number is the GCF number.
So the greatest common factor 42,20,306,897 is 1.

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

• GCF of 18, 25, 241, 585
• GCF of 14, 44, 607, 946
• GCF of 30, 72, 873, 666
• GCF of 60, 36, 368, 682
• GCF of 27, 62, 639, 359

1. What is the GCF of 42, 20, 306, 897?

Answer: GCF of 42, 20, 306, 897 is 1.

2. How to Find the GCF of 42, 20, 306, 897

Answer: Greatest Common Factor(GCF) of 42, 20, 306, 897 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 20, 306, 897) = 1.