Greatest Common Factor of 32, 21, 691, 309

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

• Greatest Common Factor of 32, 21, 691, 309 by common division method
• Greatest Common Factor of 32, 21, 691, 309 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 32

List of positive integer factors of 32 that divides 32 without a remainder.

1,2,4,8,16,32

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 691

List of positive integer factors of 691 that divides 691 without a remainder.

1,691

Factors of 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Greatest Common Factor

We found the factors 32,21,691,309 . The biggest common factor number is the GCF number.
So the greatest common factor 32,21,691,309 is 1.

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

• GCF of 65, 95, 761, 516
• GCF of 76, 60, 410, 128
• GCF of 84, 45, 167, 320
• GCF of 94, 78, 453, 796
• GCF of 53, 77, 392, 322

1. What is the GCF of 32, 21, 691, 309?

Answer: GCF of 32, 21, 691, 309 is 1.

2. How to Find the GCF of 32, 21, 691, 309

Answer: Greatest Common Factor(GCF) of 32, 21, 691, 309 = 1

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

Step 2: Then multiply all the prime factors GCF(32, 21, 691, 309) = 1.