Greatest Common Factor of 21, 130, 819

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

• Greatest Common Factor of 21, 130, 819 by common division method
• Greatest Common Factor of 21, 130, 819 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 130

List of positive integer factors of 130 that divides 130 without a remainder.

1,2,5,10,13,26,65,130

Factors of 819

List of positive integer factors of 819 that divides 819 without a remainder.

1,3,7,9,13,21,39,63,91,117,273,819

Greatest Common Factor

We found the factors 21,130,819 . The biggest common factor number is the GCF number.
So the greatest common factor 21,130,819 is 1.

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

• GCF of 43, 651, 884
• GCF of 21, 955, 319
• GCF of 43, 384, 620
• GCF of 25, 293, 785
• GCF of 99, 673, 606

1. What is the GCF of 21, 130, 819?

Answer: GCF of 21, 130, 819 is 1.

2. How to Find the GCF of 21, 130, 819

Answer: Greatest Common Factor(GCF) of 21, 130, 819 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 130, 819) = 1.