Greatest Common Factor of 21, 850, 170

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

• Greatest Common Factor of 21, 850, 170 by common division method
• Greatest Common Factor of 21, 850, 170 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 850

List of positive integer factors of 850 that divides 850 without a remainder.

1,2,5,10,17,25,34,50,85,170,425,850

Factors of 170

List of positive integer factors of 170 that divides 170 without a remainder.

1,2,5,10,17,34,85,170

Greatest Common Factor

We found the factors 21,850,170 . The biggest common factor number is the GCF number.
So the greatest common factor 21,850,170 is 1.

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

• GCF of 16, 737, 994
• GCF of 29, 242, 344
• GCF of 97, 506, 653
• GCF of 55, 881, 477
• GCF of 69, 479, 808

1. What is the GCF of 21, 850, 170?

Answer: GCF of 21, 850, 170 is 1.

2. How to Find the GCF of 21, 850, 170

Answer: Greatest Common Factor(GCF) of 21, 850, 170 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 850, 170) = 1.