Greatest Common Factor of 689, 478, 645

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

• Greatest Common Factor of 689, 478, 645 by common division method
• Greatest Common Factor of 689, 478, 645 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 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

Factors of 478

List of positive integer factors of 478 that divides 478 without a remainder.

1,2,239,478

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 689,478,645 . The biggest common factor number is the GCF number.
So the greatest common factor 689,478,645 is 1.

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

• GCF of 661, 721, 759
• GCF of 407, 857, 227
• GCF of 724, 531, 491
• GCF of 954, 510, 574
• GCF of 851, 341, 948

1. What is the GCF of 689, 478, 645?

Answer: GCF of 689, 478, 645 is 1.

2. How to Find the GCF of 689, 478, 645

Answer: Greatest Common Factor(GCF) of 689, 478, 645 = 1

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

Step 2: Then multiply all the prime factors GCF(689, 478, 645) = 1.