Greatest Common Factor of 40, 11, 20, 689

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

• Greatest Common Factor of 40, 11, 20, 689 by common division method
• Greatest Common Factor of 40, 11, 20, 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 20

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

1,2,4,5,10,20

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 40,11,20,689 . The biggest common factor number is the GCF number.
So the greatest common factor 40,11,20,689 is 1.

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

• GCF of 61, 19, 48, 341
• GCF of 98, 47, 32, 121
• GCF of 35, 87, 23, 906
• GCF of 19, 93, 34, 948
• GCF of 87, 49, 46, 160

1. What is the GCF of 40, 11, 20, 689?

Answer: GCF of 40, 11, 20, 689 is 1.

2. How to Find the GCF of 40, 11, 20, 689

Answer: Greatest Common Factor(GCF) of 40, 11, 20, 689 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 11, 20, 689) = 1.