Greatest Common Factor of 856, 621, 18

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

• Greatest Common Factor of 856, 621, 18 by common division method
• Greatest Common Factor of 856, 621, 18 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 856

List of positive integer factors of 856 that divides 856 without a remainder.

1,2,4,8,107,214,428,856

Factors of 621

List of positive integer factors of 621 that divides 621 without a remainder.

1,3,9,23,27,69,207,621

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Greatest Common Factor

We found the factors 856,621,18 . The biggest common factor number is the GCF number.
So the greatest common factor 856,621,18 is 1.

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

• GCF of 609, 886, 66
• GCF of 578, 604, 46
• GCF of 504, 275, 24
• GCF of 171, 541, 53
• GCF of 276, 140, 58

1. What is the GCF of 856, 621, 18?

Answer: GCF of 856, 621, 18 is 1.

2. How to Find the GCF of 856, 621, 18

Answer: Greatest Common Factor(GCF) of 856, 621, 18 = 1

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

Step 2: Then multiply all the prime factors GCF(856, 621, 18) = 1.