Greatest Common Factor of 677, 172, 20

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

• Greatest Common Factor of 677, 172, 20 by common division method
• Greatest Common Factor of 677, 172, 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 677

List of positive integer factors of 677 that divides 677 without a remainder.

1,677

Factors of 172

List of positive integer factors of 172 that divides 172 without a remainder.

1,2,4,43,86,172

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 677,172,20 . The biggest common factor number is the GCF number.
So the greatest common factor 677,172,20 is 1.

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

• GCF of 610, 505, 43
• GCF of 378, 570, 26
• GCF of 182, 915, 59
• GCF of 211, 605, 43
• GCF of 809, 148, 46

1. What is the GCF of 677, 172, 20?

Answer: GCF of 677, 172, 20 is 1.

2. How to Find the GCF of 677, 172, 20

Answer: Greatest Common Factor(GCF) of 677, 172, 20 = 1

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

Step 2: Then multiply all the prime factors GCF(677, 172, 20) = 1.