Greatest Common Factor of 645, 389, 74

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

• Greatest Common Factor of 645, 389, 74 by common division method
• Greatest Common Factor of 645, 389, 74 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 645

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

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

Factors of 389

List of positive integer factors of 389 that divides 389 without a remainder.

1,389

Factors of 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Greatest Common Factor

We found the factors 645,389,74 . The biggest common factor number is the GCF number.
So the greatest common factor 645,389,74 is 1.

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

• GCF of 126, 222, 91
• GCF of 323, 821, 23
• GCF of 636, 829, 33
• GCF of 587, 592, 97
• GCF of 751, 599, 19

1. What is the GCF of 645, 389, 74?

Answer: GCF of 645, 389, 74 is 1.

2. How to Find the GCF of 645, 389, 74

Answer: Greatest Common Factor(GCF) of 645, 389, 74 = 1

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

Step 2: Then multiply all the prime factors GCF(645, 389, 74) = 1.