Greatest Common Factor of 21, 35, 38, 909

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

• Greatest Common Factor of 21, 35, 38, 909 by common division method
• Greatest Common Factor of 21, 35, 38, 909 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 21

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

1,3,7,21

Factors of 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 909

List of positive integer factors of 909 that divides 909 without a remainder.

1,3,9,101,303,909

Greatest Common Factor

We found the factors 21,35,38,909 . The biggest common factor number is the GCF number.
So the greatest common factor 21,35,38,909 is 1.

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

• GCF of 77, 61, 33, 899
• GCF of 75, 71, 29, 804
• GCF of 65, 21, 88, 379
• GCF of 22, 41, 25, 227
• GCF of 57, 31, 82, 607

1. What is the GCF of 21, 35, 38, 909?

Answer: GCF of 21, 35, 38, 909 is 1.

2. How to Find the GCF of 21, 35, 38, 909

Answer: Greatest Common Factor(GCF) of 21, 35, 38, 909 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 35, 38, 909) = 1.