Greatest Common Factor of 68, 12, 77, 155

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

• Greatest Common Factor of 68, 12, 77, 155 by common division method
• Greatest Common Factor of 68, 12, 77, 155 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 68

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

1,2,4,17,34,68

Factors of 12

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

1,2,3,4,6,12

Factors of 77

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

1,7,11,77

Factors of 155

List of positive integer factors of 155 that divides 155 without a remainder.

1,5,31,155

Greatest Common Factor

We found the factors 68,12,77,155 . The biggest common factor number is the GCF number.
So the greatest common factor 68,12,77,155 is 1.

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

• GCF of 23, 57, 17, 313
• GCF of 94, 73, 29, 281
• GCF of 35, 79, 77, 408
• GCF of 44, 49, 81, 204
• GCF of 64, 61, 33, 259

1. What is the GCF of 68, 12, 77, 155?

Answer: GCF of 68, 12, 77, 155 is 1.

2. How to Find the GCF of 68, 12, 77, 155

Answer: Greatest Common Factor(GCF) of 68, 12, 77, 155 = 1

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

Step 2: Then multiply all the prime factors GCF(68, 12, 77, 155) = 1.