Greatest Common Factor of 87, 78, 40, 90, 798

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

• Greatest Common Factor of 87, 78, 40, 90, 798 by common division method
• Greatest Common Factor of 87, 78, 40, 90, 798 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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

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

Factors of 798

List of positive integer factors of 798 that divides 798 without a remainder.

1,2,3,6,7,14,19,21,38,42,57,114,133,266,399,798

Greatest Common Factor

We found the factors 87,78,40,90,798 . The biggest common factor number is the GCF number.
So the greatest common factor 87,78,40,90,798 is 1.

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

• GCF of 58, 38, 68, 99, 764
• GCF of 19, 82, 96, 80, 713
• GCF of 77, 16, 66, 53, 706
• GCF of 79, 76, 99, 16, 218
• GCF of 83, 62, 61, 65, 611

1. What is the GCF of 87, 78, 40, 90, 798?

Answer: GCF of 87, 78, 40, 90, 798 is 1.

2. How to Find the GCF of 87, 78, 40, 90, 798

Answer: Greatest Common Factor(GCF) of 87, 78, 40, 90, 798 = 1

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

Step 2: Then multiply all the prime factors GCF(87, 78, 40, 90, 798) = 1.