Greatest Common Factor of 57, 91, 71, 98

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

• Greatest Common Factor of 57, 91, 71, 98 by common division method
• Greatest Common Factor of 57, 91, 71, 98 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 57

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

1,3,19,57

Factors of 91

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

1,7,13,91

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 98

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

1,2,7,14,49,98

Greatest Common Factor

We found the factors 57,91,71,98 . The biggest common factor number is the GCF number.
So the greatest common factor 57,91,71,98 is 1.

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

• GCF of 99, 97, 90, 70
• GCF of 42, 55, 92, 21
• GCF of 85, 19, 82, 90
• GCF of 61, 99, 73, 69
• GCF of 70, 82, 76, 63

1. What is the GCF of 57, 91, 71, 98?

Answer: GCF of 57, 91, 71, 98 is 1.

2. How to Find the GCF of 57, 91, 71, 98

Answer: Greatest Common Factor(GCF) of 57, 91, 71, 98 = 1

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

Step 2: Then multiply all the prime factors GCF(57, 91, 71, 98) = 1.