Greatest Common Factor of 13, 66, 25

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

• Greatest Common Factor of 13, 66, 25 by common division method
• Greatest Common Factor of 13, 66, 25 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

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 25

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

1,5,25

Greatest Common Factor

We found the factors 13,66,25 . The biggest common factor number is the GCF number.
So the greatest common factor 13,66,25 is 1.

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

• GCF of 24, 68, 54
• GCF of 14, 48, 96
• GCF of 74, 93, 34
• GCF of 47, 77, 80
• GCF of 72, 85, 44

1. What is the GCF of 13, 66, 25?

Answer: GCF of 13, 66, 25 is 1.

2. How to Find the GCF of 13, 66, 25

Answer: Greatest Common Factor(GCF) of 13, 66, 25 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 66, 25) = 1.