Greatest Common Factor of 66, 61, 77, 480

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

• Greatest Common Factor of 66, 61, 77, 480 by common division method
• Greatest Common Factor of 66, 61, 77, 480 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 77

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

1,7,11,77

Factors of 480

List of positive integer factors of 480 that divides 480 without a remainder.

1,2,3,4,5,6,8,10,12,15,16,20,24,30,32,40,48,60,80,96,120,160,240,480

Greatest Common Factor

We found the factors 66,61,77,480 . The biggest common factor number is the GCF number.
So the greatest common factor 66,61,77,480 is 1.

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

• GCF of 94, 23, 96, 722
• GCF of 71, 27, 30, 673
• GCF of 76, 51, 41, 360
• GCF of 32, 57, 76, 195
• GCF of 79, 93, 60, 896

1. What is the GCF of 66, 61, 77, 480?

Answer: GCF of 66, 61, 77, 480 is 1.

2. How to Find the GCF of 66, 61, 77, 480

Answer: Greatest Common Factor(GCF) of 66, 61, 77, 480 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 61, 77, 480) = 1.