Greatest Common Factor of 72, 170, 621

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

• Greatest Common Factor of 72, 170, 621 by common division method
• Greatest Common Factor of 72, 170, 621 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 170

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

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

Factors of 621

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

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

Greatest Common Factor

We found the factors 72,170,621 . The biggest common factor number is the GCF number.
So the greatest common factor 72,170,621 is 1.

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

• GCF of 20, 868, 257
• GCF of 70, 510, 213
• GCF of 82, 530, 633
• GCF of 74, 799, 285
• GCF of 28, 435, 549

1. What is the GCF of 72, 170, 621?

Answer: GCF of 72, 170, 621 is 1.

2. How to Find the GCF of 72, 170, 621

Answer: Greatest Common Factor(GCF) of 72, 170, 621 = 1

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

Step 2: Then multiply all the prime factors GCF(72, 170, 621) = 1.