Greatest Common Factor of 77, 816, 420

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

• Greatest Common Factor of 77, 816, 420 by common division method
• Greatest Common Factor of 77, 816, 420 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 816

List of positive integer factors of 816 that divides 816 without a remainder.

1,2,3,4,6,8,12,16,17,24,34,48,51,68,102,136,204,272,408,816

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 77,816,420 . The biggest common factor number is the GCF number.
So the greatest common factor 77,816,420 is 1.

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

• GCF of 50, 525, 370
• GCF of 73, 667, 266
• GCF of 71, 414, 370
• GCF of 14, 292, 488
• GCF of 79, 199, 128

1. What is the GCF of 77, 816, 420?

Answer: GCF of 77, 816, 420 is 1.

2. How to Find the GCF of 77, 816, 420

Answer: Greatest Common Factor(GCF) of 77, 816, 420 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 816, 420) = 1.