Greatest Common Factor of 78, 43, 87, 17

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

• Greatest Common Factor of 78, 43, 87, 17 by common division method
• Greatest Common Factor of 78, 43, 87, 17 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 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 87

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

1,3,29,87

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Greatest Common Factor

We found the factors 78,43,87,17 . The biggest common factor number is the GCF number.
So the greatest common factor 78,43,87,17 is 1.

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

• GCF of 29, 11, 94, 99
• GCF of 36, 26, 72, 36
• GCF of 26, 11, 50, 61
• GCF of 98, 54, 73, 76
• GCF of 37, 13, 25, 85

1. What is the GCF of 78, 43, 87, 17?

Answer: GCF of 78, 43, 87, 17 is 1.

2. How to Find the GCF of 78, 43, 87, 17

Answer: Greatest Common Factor(GCF) of 78, 43, 87, 17 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 43, 87, 17) = 1.