Greatest Common Factor of 78, 22, 77, 90

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

• Greatest Common Factor of 78, 22, 77, 90 by common division method
• Greatest Common Factor of 78, 22, 77, 90 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 22

List of positive integer factors of 22 that divides 22 without a remainder.

1,2,11,22

Factors of 77

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

1,7,11,77

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Greatest Common Factor

We found the factors 78,22,77,90 . The biggest common factor number is the GCF number.
So the greatest common factor 78,22,77,90 is 1.

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

• GCF of 32, 95, 94, 93
• GCF of 37, 19, 91, 94
• GCF of 72, 48, 31, 23
• GCF of 23, 50, 60, 92
• GCF of 70, 19, 31, 20

1. What is the GCF of 78, 22, 77, 90?

Answer: GCF of 78, 22, 77, 90 is 1.

2. How to Find the GCF of 78, 22, 77, 90

Answer: Greatest Common Factor(GCF) of 78, 22, 77, 90 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 22, 77, 90) = 1.