Greatest Common Factor of 689, 155, 85

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

• Greatest Common Factor of 689, 155, 85 by common division method
• Greatest Common Factor of 689, 155, 85 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 155

List of positive integer factors of 155 that divides 155 without a remainder.

1,5,31,155

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Greatest Common Factor

We found the factors 689,155,85 . The biggest common factor number is the GCF number.
So the greatest common factor 689,155,85 is 1.

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

• GCF of 331, 389, 85
• GCF of 501, 812, 83
• GCF of 390, 856, 63
• GCF of 623, 234, 21
• GCF of 491, 149, 91

1. What is the GCF of 689, 155, 85?

Answer: GCF of 689, 155, 85 is 1.

2. How to Find the GCF of 689, 155, 85

Answer: Greatest Common Factor(GCF) of 689, 155, 85 = 1

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

Step 2: Then multiply all the prime factors GCF(689, 155, 85) = 1.