Greatest Common Factor of 78, 25, 55, 105

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

• Greatest Common Factor of 78, 25, 55, 105 by common division method
• Greatest Common Factor of 78, 25, 55, 105 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 78

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

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

Factors of 25

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

1,5,25

Factors of 55

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

1,5,11,55

Factors of 105

List of positive integer factors of 105 that divides 105 without a remainder.

1,3,5,7,15,21,35,105

Greatest Common Factor

We found the factors 78,25,55,105 . The biggest common factor number is the GCF number.
So the greatest common factor 78,25,55,105 is 1.

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

• GCF of 57, 53, 85, 832
• GCF of 85, 70, 87, 172
• GCF of 94, 90, 29, 158
• GCF of 37, 39, 44, 919
• GCF of 17, 47, 93, 306

1. What is the GCF of 78, 25, 55, 105?

Answer: GCF of 78, 25, 55, 105 is 1.

2. How to Find the GCF of 78, 25, 55, 105

Answer: Greatest Common Factor(GCF) of 78, 25, 55, 105 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 25, 55, 105) = 1.