Greatest Common Factor of 345, 764, 21

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

• Greatest Common Factor of 345, 764, 21 by common division method
• Greatest Common Factor of 345, 764, 21 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 345

List of positive integer factors of 345 that divides 345 without a remainder.

1,3,5,15,23,69,115,345

Factors of 764

List of positive integer factors of 764 that divides 764 without a remainder.

1,2,4,191,382,764

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 345,764,21 . The biggest common factor number is the GCF number.
So the greatest common factor 345,764,21 is 1.

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

• GCF of 559, 375, 88
• GCF of 494, 311, 88
• GCF of 626, 538, 51
• GCF of 543, 861, 34
• GCF of 946, 972, 43

1. What is the GCF of 345, 764, 21?

Answer: GCF of 345, 764, 21 is 1.

2. How to Find the GCF of 345, 764, 21

Answer: Greatest Common Factor(GCF) of 345, 764, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(345, 764, 21) = 1.