Greatest Common Factor of 19, 57, 42, 89

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

• Greatest Common Factor of 19, 57, 42, 89 by common division method
• Greatest Common Factor of 19, 57, 42, 89 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 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

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 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Greatest Common Factor

We found the factors 19,57,42,89 . The biggest common factor number is the GCF number.
So the greatest common factor 19,57,42,89 is 1.

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

• GCF of 15, 70, 85, 79
• GCF of 79, 81, 61, 58
• GCF of 41, 13, 99, 81
• GCF of 30, 62, 18, 11
• GCF of 42, 96, 90, 45

1. What is the GCF of 19, 57, 42, 89?

Answer: GCF of 19, 57, 42, 89 is 1.

2. How to Find the GCF of 19, 57, 42, 89

Answer: Greatest Common Factor(GCF) of 19, 57, 42, 89 = 1

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

Step 2: Then multiply all the prime factors GCF(19, 57, 42, 89) = 1.