Greatest Common Factor of 20, 77, 55, 975

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

• Greatest Common Factor of 20, 77, 55, 975 by common division method
• Greatest Common Factor of 20, 77, 55, 975 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 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 975

List of positive integer factors of 975 that divides 975 without a remainder.

1,3,5,13,15,25,39,65,75,195,325,975

Greatest Common Factor

We found the factors 20,77,55,975 . The biggest common factor number is the GCF number.
So the greatest common factor 20,77,55,975 is 1.

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

• GCF of 27, 83, 55, 835
• GCF of 10, 59, 21, 309
• GCF of 47, 41, 34, 232
• GCF of 59, 89, 64, 584
• GCF of 29, 43, 58, 856

1. What is the GCF of 20, 77, 55, 975?

Answer: GCF of 20, 77, 55, 975 is 1.

2. How to Find the GCF of 20, 77, 55, 975

Answer: Greatest Common Factor(GCF) of 20, 77, 55, 975 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 77, 55, 975) = 1.