Greatest Common Factor of 19, 17, 13, 689

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

• Greatest Common Factor of 19, 17, 13, 689 by common division method
• Greatest Common Factor of 19, 17, 13, 689 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 19

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

1,19

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

Greatest Common Factor

We found the factors 19,17,13,689 . The biggest common factor number is the GCF number.
So the greatest common factor 19,17,13,689 is 1.

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

• GCF of 69, 52, 86, 912
• GCF of 63, 41, 90, 101
• GCF of 31, 15, 47, 980
• GCF of 39, 20, 63, 365
• GCF of 25, 10, 30, 548

1. What is the GCF of 19, 17, 13, 689?

Answer: GCF of 19, 17, 13, 689 is 1.

2. How to Find the GCF of 19, 17, 13, 689

Answer: Greatest Common Factor(GCF) of 19, 17, 13, 689 = 1

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

Step 2: Then multiply all the prime factors GCF(19, 17, 13, 689) = 1.