Greatest Common Factor of 77, 78, 30, 169

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

• Greatest Common Factor of 77, 78, 30, 169 by common division method
• Greatest Common Factor of 77, 78, 30, 169 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 77

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

1,7,11,77

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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 169

List of positive integer factors of 169 that divides 169 without a remainder.

1,13,169

Greatest Common Factor

We found the factors 77,78,30,169 . The biggest common factor number is the GCF number.
So the greatest common factor 77,78,30,169 is 1.

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

• GCF of 28, 59, 48, 260
• GCF of 66, 62, 66, 963
• GCF of 39, 76, 73, 858
• GCF of 38, 71, 98, 810
• GCF of 57, 80, 58, 616

1. What is the GCF of 77, 78, 30, 169?

Answer: GCF of 77, 78, 30, 169 is 1.

2. How to Find the GCF of 77, 78, 30, 169

Answer: Greatest Common Factor(GCF) of 77, 78, 30, 169 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 78, 30, 169) = 1.