Greatest Common Factor of 171, 995, 21

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

• Greatest Common Factor of 171, 995, 21 by common division method
• Greatest Common Factor of 171, 995, 21 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 171

List of positive integer factors of 171 that divides 171 without a remainder.

1,3,9,19,57,171

Factors of 995

List of positive integer factors of 995 that divides 995 without a remainder.

1,5,199,995

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 171,995,21 . The biggest common factor number is the GCF number.
So the greatest common factor 171,995,21 is 1.

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

• GCF of 878, 927, 76
• GCF of 675, 189, 36
• GCF of 306, 387, 56
• GCF of 395, 973, 81
• GCF of 356, 884, 57

1. What is the GCF of 171, 995, 21?

Answer: GCF of 171, 995, 21 is 1.

2. How to Find the GCF of 171, 995, 21

Answer: Greatest Common Factor(GCF) of 171, 995, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(171, 995, 21) = 1.