Greatest Common Factor of 78, 77, 61, 742

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

• Greatest Common Factor of 78, 77, 61, 742 by common division method
• Greatest Common Factor of 78, 77, 61, 742 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 77

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

1,7,11,77

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 742

List of positive integer factors of 742 that divides 742 without a remainder.

1,2,7,14,53,106,371,742

Greatest Common Factor

We found the factors 78,77,61,742 . The biggest common factor number is the GCF number.
So the greatest common factor 78,77,61,742 is 1.

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

• GCF of 67, 38, 76, 817
• GCF of 56, 47, 38, 597
• GCF of 56, 27, 52, 789
• GCF of 52, 16, 13, 543
• GCF of 41, 44, 46, 753

1. What is the GCF of 78, 77, 61, 742?

Answer: GCF of 78, 77, 61, 742 is 1.

2. How to Find the GCF of 78, 77, 61, 742

Answer: Greatest Common Factor(GCF) of 78, 77, 61, 742 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 77, 61, 742) = 1.