Greatest Common Factor of 104, 309, 581, 21

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

• Greatest Common Factor of 104, 309, 581, 21 by common division method
• Greatest Common Factor of 104, 309, 581, 21 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 104

List of positive integer factors of 104 that divides 104 without a remainder.

1,2,4,8,13,26,52,104

Factors of 309

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

1,3,103,309

Factors of 581

List of positive integer factors of 581 that divides 581 without a remainder.

1,7,83,581

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 104,309,581,21 . The biggest common factor number is the GCF number.
So the greatest common factor 104,309,581,21 is 1.

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

• GCF of 642, 469, 296, 38
• GCF of 765, 716, 931, 28
• GCF of 352, 377, 599, 94
• GCF of 617, 641, 320, 12
• GCF of 148, 677, 931, 85

1. What is the GCF of 104, 309, 581, 21?

Answer: GCF of 104, 309, 581, 21 is 1.

2. How to Find the GCF of 104, 309, 581, 21

Answer: Greatest Common Factor(GCF) of 104, 309, 581, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(104, 309, 581, 21) = 1.