Greatest Common Factor of 21, 316, 855

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

• Greatest Common Factor of 21, 316, 855 by common division method
• Greatest Common Factor of 21, 316, 855 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 316

List of positive integer factors of 316 that divides 316 without a remainder.

1,2,4,79,158,316

Factors of 855

List of positive integer factors of 855 that divides 855 without a remainder.

1,3,5,9,15,19,45,57,95,171,285,855

Greatest Common Factor

We found the factors 21,316,855 . The biggest common factor number is the GCF number.
So the greatest common factor 21,316,855 is 1.

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

• GCF of 82, 846, 562
• GCF of 41, 230, 500
• GCF of 62, 790, 174
• GCF of 89, 847, 127
• GCF of 73, 689, 576

1. What is the GCF of 21, 316, 855?

Answer: GCF of 21, 316, 855 is 1.

2. How to Find the GCF of 21, 316, 855

Answer: Greatest Common Factor(GCF) of 21, 316, 855 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 316, 855) = 1.