Greatest Common Factor of 42, 34, 19, 657

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

• Greatest Common Factor of 42, 34, 19, 657 by common division method
• Greatest Common Factor of 42, 34, 19, 657 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 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 657

List of positive integer factors of 657 that divides 657 without a remainder.

1,3,9,73,219,657

Greatest Common Factor

We found the factors 42,34,19,657 . The biggest common factor number is the GCF number.
So the greatest common factor 42,34,19,657 is 1.

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

• GCF of 13, 33, 69, 474
• GCF of 82, 31, 60, 664
• GCF of 78, 60, 52, 882
• GCF of 85, 92, 76, 882
• GCF of 43, 66, 42, 863

1. What is the GCF of 42, 34, 19, 657?

Answer: GCF of 42, 34, 19, 657 is 1.

2. How to Find the GCF of 42, 34, 19, 657

Answer: Greatest Common Factor(GCF) of 42, 34, 19, 657 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 34, 19, 657) = 1.