Greatest Common Factor of 27, 21, 35, 49, 810

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

• Greatest Common Factor of 27, 21, 35, 49, 810 by common division method
• Greatest Common Factor of 27, 21, 35, 49, 810 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 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

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 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 810

List of positive integer factors of 810 that divides 810 without a remainder.

1,2,3,5,6,9,10,15,18,27,30,45,54,81,90,135,162,270,405,810

Greatest Common Factor

We found the factors 27,21,35,49,810 . The biggest common factor number is the GCF number.
So the greatest common factor 27,21,35,49,810 is 1.

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

• GCF of 95, 30, 15, 90, 591
• GCF of 97, 67, 38, 67, 793
• GCF of 45, 75, 81, 73, 415
• GCF of 87, 21, 68, 22, 683
• GCF of 17, 29, 19, 58, 844

1. What is the GCF of 27, 21, 35, 49, 810?

Answer: GCF of 27, 21, 35, 49, 810 is 1.

2. How to Find the GCF of 27, 21, 35, 49, 810

Answer: Greatest Common Factor(GCF) of 27, 21, 35, 49, 810 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 21, 35, 49, 810) = 1.