Greatest Common Factor of 38, 21, 253

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

• Greatest Common Factor of 38, 21, 253 by common division method
• Greatest Common Factor of 38, 21, 253 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 21

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

1,3,7,21

Factors of 253

List of positive integer factors of 253 that divides 253 without a remainder.

1,11,23,253

Greatest Common Factor

We found the factors 38,21,253 . The biggest common factor number is the GCF number.
So the greatest common factor 38,21,253 is 1.

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

• GCF of 91, 56, 936
• GCF of 74, 76, 392
• GCF of 78, 56, 652
• GCF of 23, 29, 510
• GCF of 55, 80, 395

1. What is the GCF of 38, 21, 253?

Answer: GCF of 38, 21, 253 is 1.

2. How to Find the GCF of 38, 21, 253

Answer: Greatest Common Factor(GCF) of 38, 21, 253 = 1

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

Step 2: Then multiply all the prime factors GCF(38, 21, 253) = 1.