Greatest Common Factor of 42, 19, 65, 677

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

• Greatest Common Factor of 42, 19, 65, 677 by common division method
• Greatest Common Factor of 42, 19, 65, 677 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 19

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

1,19

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 677

List of positive integer factors of 677 that divides 677 without a remainder.

1,677

Greatest Common Factor

We found the factors 42,19,65,677 . The biggest common factor number is the GCF number.
So the greatest common factor 42,19,65,677 is 1.

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

• GCF of 17, 14, 21, 904
• GCF of 20, 73, 61, 588
• GCF of 53, 79, 93, 234
• GCF of 64, 71, 88, 945
• GCF of 90, 64, 25, 274

1. What is the GCF of 42, 19, 65, 677?

Answer: GCF of 42, 19, 65, 677 is 1.

2. How to Find the GCF of 42, 19, 65, 677

Answer: Greatest Common Factor(GCF) of 42, 19, 65, 677 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 19, 65, 677) = 1.