Greatest Common Factor of 25, 80, 66, 100

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

• Greatest Common Factor of 25, 80, 66, 100 by common division method
• Greatest Common Factor of 25, 80, 66, 100 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 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 100

List of positive integer factors of 100 that divides 100 without a remainder.

1,2,4,5,10,20,25,50,100

Greatest Common Factor

We found the factors 25,80,66,100 . The biggest common factor number is the GCF number.
So the greatest common factor 25,80,66,100 is 1.

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

• GCF of 70, 28, 21, 252
• GCF of 76, 57, 38, 714
• GCF of 94, 86, 45, 444
• GCF of 60, 33, 29, 769
• GCF of 66, 88, 69, 820

1. What is the GCF of 25, 80, 66, 100?

Answer: GCF of 25, 80, 66, 100 is 1.

2. How to Find the GCF of 25, 80, 66, 100

Answer: Greatest Common Factor(GCF) of 25, 80, 66, 100 = 1

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

Step 2: Then multiply all the prime factors GCF(25, 80, 66, 100) = 1.