Greatest Common Factor of 55, 84, 77, 399

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

• Greatest Common Factor of 55, 84, 77, 399 by common division method
• Greatest Common Factor of 55, 84, 77, 399 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 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 77

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

1,7,11,77

Factors of 399

List of positive integer factors of 399 that divides 399 without a remainder.

1,3,7,19,21,57,133,399

Greatest Common Factor

We found the factors 55,84,77,399 . The biggest common factor number is the GCF number.
So the greatest common factor 55,84,77,399 is 1.

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

• GCF of 39, 15, 95, 995
• GCF of 73, 57, 90, 208
• GCF of 17, 65, 92, 905
• GCF of 36, 91, 11, 464
• GCF of 45, 11, 45, 979

1. What is the GCF of 55, 84, 77, 399?

Answer: GCF of 55, 84, 77, 399 is 1.

2. How to Find the GCF of 55, 84, 77, 399

Answer: Greatest Common Factor(GCF) of 55, 84, 77, 399 = 1

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

Step 2: Then multiply all the prime factors GCF(55, 84, 77, 399) = 1.