Greatest Common Factor of 21, 714, 729

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

• Greatest Common Factor of 21, 714, 729 by common division method
• Greatest Common Factor of 21, 714, 729 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 21

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

1,3,7,21

Factors of 714

List of positive integer factors of 714 that divides 714 without a remainder.

1,2,3,6,7,14,17,21,34,42,51,102,119,238,357,714

Factors of 729

List of positive integer factors of 729 that divides 729 without a remainder.

1,3,9,27,81,243,729

Greatest Common Factor

We found the factors 21,714,729 . The biggest common factor number is the GCF number.
So the greatest common factor 21,714,729 is 3.

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

• GCF of 70, 993, 892
• GCF of 71, 381, 950
• GCF of 17, 585, 771
• GCF of 23, 831, 425
• GCF of 75, 640, 462

1. What is the GCF of 21, 714, 729?

Answer: GCF of 21, 714, 729 is 3.

2. How to Find the GCF of 21, 714, 729

Answer: Greatest Common Factor(GCF) of 21, 714, 729 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 714, 729) = 3.