Greatest Common Factor of 921, 213, 645

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

• Greatest Common Factor of 921, 213, 645 by common division method
• Greatest Common Factor of 921, 213, 645 with matching the biggest common factor

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

Factors of 921

List of positive integer factors of 921 that divides 921 without a remainder.

1,3,307,921

Factors of 213

List of positive integer factors of 213 that divides 213 without a remainder.

1,3,71,213

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Greatest Common Factor

We found the factors 921,213,645 . The biggest common factor number is the GCF number.
So the greatest common factor 921,213,645 is 3.

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

• GCF of 441, 265, 845
• GCF of 489, 663, 453
• GCF of 470, 383, 346
• GCF of 703, 952, 721
• GCF of 408, 162, 179

1. What is the GCF of 921, 213, 645?

Answer: GCF of 921, 213, 645 is 3.

2. How to Find the GCF of 921, 213, 645

Answer: Greatest Common Factor(GCF) of 921, 213, 645 = 3

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

Step 2: Then multiply all the prime factors GCF(921, 213, 645) = 3.