Greatest Common Factor of 80, 45, 57, 961

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

• Greatest Common Factor of 80, 45, 57, 961 by common division method
• Greatest Common Factor of 80, 45, 57, 961 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 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 57

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

1,3,19,57

Factors of 961

List of positive integer factors of 961 that divides 961 without a remainder.

1,31,961

Greatest Common Factor

We found the factors 80,45,57,961 . The biggest common factor number is the GCF number.
So the greatest common factor 80,45,57,961 is 1.

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

• GCF of 90, 61, 11, 370
• GCF of 78, 46, 28, 449
• GCF of 27, 93, 62, 638
• GCF of 64, 27, 70, 552
• GCF of 12, 95, 43, 669

1. What is the GCF of 80, 45, 57, 961?

Answer: GCF of 80, 45, 57, 961 is 1.

2. How to Find the GCF of 80, 45, 57, 961

Answer: Greatest Common Factor(GCF) of 80, 45, 57, 961 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 45, 57, 961) = 1.