Greatest Common Factor of 380, 671, 21

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

• Greatest Common Factor of 380, 671, 21 by common division method
• Greatest Common Factor of 380, 671, 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 380

List of positive integer factors of 380 that divides 380 without a remainder.

1,2,4,5,10,19,20,38,76,95,190,380

Factors of 671

List of positive integer factors of 671 that divides 671 without a remainder.

1,11,61,671

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 380,671,21 . The biggest common factor number is the GCF number.
So the greatest common factor 380,671,21 is 1.

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

• GCF of 192, 949, 65
• GCF of 867, 869, 22
• GCF of 184, 212, 28
• GCF of 941, 850, 60
• GCF of 126, 461, 20

1. What is the GCF of 380, 671, 21?

Answer: GCF of 380, 671, 21 is 1.

2. How to Find the GCF of 380, 671, 21

Answer: Greatest Common Factor(GCF) of 380, 671, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(380, 671, 21) = 1.