Greatest Common Factor of 38, 71, 21, 521

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

• Greatest Common Factor of 38, 71, 21, 521 by common division method
• Greatest Common Factor of 38, 71, 21, 521 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 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 21

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

1,3,7,21

Factors of 521

List of positive integer factors of 521 that divides 521 without a remainder.

1,521

Greatest Common Factor

We found the factors 38,71,21,521 . The biggest common factor number is the GCF number.
So the greatest common factor 38,71,21,521 is 1.

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

• GCF of 51, 98, 92, 273
• GCF of 37, 95, 76, 170
• GCF of 17, 14, 33, 579
• GCF of 67, 68, 92, 364
• GCF of 77, 57, 12, 819

1. What is the GCF of 38, 71, 21, 521?

Answer: GCF of 38, 71, 21, 521 is 1.

2. How to Find the GCF of 38, 71, 21, 521

Answer: Greatest Common Factor(GCF) of 38, 71, 21, 521 = 1

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

Step 2: Then multiply all the prime factors GCF(38, 71, 21, 521) = 1.