Greatest Common Factor of 65, 47, 42, 649

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

• Greatest Common Factor of 65, 47, 42, 649 by common division method
• Greatest Common Factor of 65, 47, 42, 649 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 65

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

1,5,13,65

Factors of 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

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 649

List of positive integer factors of 649 that divides 649 without a remainder.

1,11,59,649

Greatest Common Factor

We found the factors 65,47,42,649 . The biggest common factor number is the GCF number.
So the greatest common factor 65,47,42,649 is 1.

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

• GCF of 11, 62, 18, 650
• GCF of 58, 98, 75, 103
• GCF of 76, 23, 65, 999
• GCF of 17, 70, 44, 560
• GCF of 55, 40, 80, 818

1. What is the GCF of 65, 47, 42, 649?

Answer: GCF of 65, 47, 42, 649 is 1.

2. How to Find the GCF of 65, 47, 42, 649

Answer: Greatest Common Factor(GCF) of 65, 47, 42, 649 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 47, 42, 649) = 1.