Greatest Common Factor of 25, 77, 12, 68, 66

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

• Greatest Common Factor of 25, 77, 12, 68, 66 by common division method
• Greatest Common Factor of 25, 77, 12, 68, 66 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 77

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

1,7,11,77

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 66

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

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

Greatest Common Factor

We found the factors 25,77,12,68,66 . The biggest common factor number is the GCF number.
So the greatest common factor 25,77,12,68,66 is 1.

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

• GCF of 34, 65, 37, 93, 81
• GCF of 19, 97, 49, 13, 11
• GCF of 46, 48, 54, 59, 71
• GCF of 49, 61, 55, 54, 26
• GCF of 35, 95, 93, 53, 41

1. What is the GCF of 25, 77, 12, 68, 66?

Answer: GCF of 25, 77, 12, 68, 66 is 1.

2. How to Find the GCF of 25, 77, 12, 68, 66

Answer: Greatest Common Factor(GCF) of 25, 77, 12, 68, 66 = 1

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

Step 2: Then multiply all the prime factors GCF(25, 77, 12, 68, 66) = 1.