Greatest Common Factor of 15, 78, 29, 25

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

• Greatest Common Factor of 15, 78, 29, 25 by common division method
• Greatest Common Factor of 15, 78, 29, 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 29

List of positive integer factors of 29 that divides 29 without a remainder.

1,29

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 15,78,29,25 . The biggest common factor number is the GCF number.
So the greatest common factor 15,78,29,25 is 1.

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

• GCF of 61, 16, 89, 87
• GCF of 10, 27, 31, 12
• GCF of 80, 65, 65, 86
• GCF of 10, 78, 60, 73
• GCF of 60, 19, 62, 95

1. What is the GCF of 15, 78, 29, 25?

Answer: GCF of 15, 78, 29, 25 is 1.

2. How to Find the GCF of 15, 78, 29, 25

Answer: Greatest Common Factor(GCF) of 15, 78, 29, 25 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 78, 29, 25) = 1.