Greatest Common Factor of 16, 42, 38, 91

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

• Greatest Common Factor of 16, 42, 38, 91 by common division method
• Greatest Common Factor of 16, 42, 38, 91 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 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 38

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

1,2,19,38

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Greatest Common Factor

We found the factors 16,42,38,91 . The biggest common factor number is the GCF number.
So the greatest common factor 16,42,38,91 is 1.

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

• GCF of 97, 36, 36, 99
• GCF of 81, 43, 28, 14
• GCF of 10, 10, 12, 74
• GCF of 70, 79, 73, 81
• GCF of 95, 58, 26, 38

1. What is the GCF of 16, 42, 38, 91?

Answer: GCF of 16, 42, 38, 91 is 1.

2. How to Find the GCF of 16, 42, 38, 91

Answer: Greatest Common Factor(GCF) of 16, 42, 38, 91 = 1

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

Step 2: Then multiply all the prime factors GCF(16, 42, 38, 91) = 1.