Greatest Common Factor of 20, 30, 56, 98, 35

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

• Greatest Common Factor of 20, 30, 56, 98, 35 by common division method
• Greatest Common Factor of 20, 30, 56, 98, 35 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 30

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

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

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 98

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

1,2,7,14,49,98

Factors of 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

Greatest Common Factor

We found the factors 20,30,56,98,35 . The biggest common factor number is the GCF number.
So the greatest common factor 20,30,56,98,35 is 1.

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

• GCF of 37, 62, 54, 22, 91
• GCF of 80, 30, 69, 39, 17
• GCF of 25, 97, 52, 53, 78
• GCF of 37, 52, 39, 20, 32
• GCF of 84, 49, 75, 87, 35

1. What is the GCF of 20, 30, 56, 98, 35?

Answer: GCF of 20, 30, 56, 98, 35 is 1.

2. How to Find the GCF of 20, 30, 56, 98, 35

Answer: Greatest Common Factor(GCF) of 20, 30, 56, 98, 35 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 30, 56, 98, 35) = 1.