Greatest Common Factor of 665, 342, 20

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

• Greatest Common Factor of 665, 342, 20 by common division method
• Greatest Common Factor of 665, 342, 20 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 665

List of positive integer factors of 665 that divides 665 without a remainder.

1,5,7,19,35,95,133,665

Factors of 342

List of positive integer factors of 342 that divides 342 without a remainder.

1,2,3,6,9,18,19,38,57,114,171,342

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Greatest Common Factor

We found the factors 665,342,20 . The biggest common factor number is the GCF number.
So the greatest common factor 665,342,20 is 1.

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

• GCF of 209, 336, 52
• GCF of 934, 755, 68
• GCF of 928, 202, 72
• GCF of 603, 831, 52
• GCF of 536, 617, 65

1. What is the GCF of 665, 342, 20?

Answer: GCF of 665, 342, 20 is 1.

2. How to Find the GCF of 665, 342, 20

Answer: Greatest Common Factor(GCF) of 665, 342, 20 = 1

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

Step 2: Then multiply all the prime factors GCF(665, 342, 20) = 1.