Greatest Common Factor of 38, 90, 21, 22

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

• Greatest Common Factor of 38, 90, 21, 22 by common division method
• Greatest Common Factor of 38, 90, 21, 22 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 21

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

1,3,7,21

Factors of 22

List of positive integer factors of 22 that divides 22 without a remainder.

1,2,11,22

Greatest Common Factor

We found the factors 38,90,21,22 . The biggest common factor number is the GCF number.
So the greatest common factor 38,90,21,22 is 1.

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

• GCF of 52, 39, 49, 50
• GCF of 57, 57, 59, 47
• GCF of 86, 48, 41, 46
• GCF of 44, 18, 65, 90
• GCF of 57, 85, 77, 98

1. What is the GCF of 38, 90, 21, 22?

Answer: GCF of 38, 90, 21, 22 is 1.

2. How to Find the GCF of 38, 90, 21, 22

Answer: Greatest Common Factor(GCF) of 38, 90, 21, 22 = 1

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

Step 2: Then multiply all the prime factors GCF(38, 90, 21, 22) = 1.