Greatest Common Factor of 19, 57, 98, 30

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

• Greatest Common Factor of 19, 57, 98, 30 by common division method
• Greatest Common Factor of 19, 57, 98, 30 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 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Greatest Common Factor

We found the factors 19,57,98,30 . The biggest common factor number is the GCF number.
So the greatest common factor 19,57,98,30 is 1.

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

• GCF of 60, 34, 22, 71
• GCF of 78, 83, 28, 69
• GCF of 40, 34, 42, 71
• GCF of 97, 72, 82, 17
• GCF of 26, 52, 53, 91

1. What is the GCF of 19, 57, 98, 30?

Answer: GCF of 19, 57, 98, 30 is 1.

2. How to Find the GCF of 19, 57, 98, 30

Answer: Greatest Common Factor(GCF) of 19, 57, 98, 30 = 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, 98, 30) = 1.