Greatest Common Factor of 64, 78, 75, 220

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

• Greatest Common Factor of 64, 78, 75, 220 by common division method
• Greatest Common Factor of 64, 78, 75, 220 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 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

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 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 220

List of positive integer factors of 220 that divides 220 without a remainder.

1,2,4,5,10,11,20,22,44,55,110,220

Greatest Common Factor

We found the factors 64,78,75,220 . The biggest common factor number is the GCF number.
So the greatest common factor 64,78,75,220 is 1.

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

• GCF of 26, 98, 66, 342
• GCF of 99, 40, 92, 149
• GCF of 72, 89, 64, 916
• GCF of 25, 88, 30, 829
• GCF of 94, 21, 43, 674

1. What is the GCF of 64, 78, 75, 220?

Answer: GCF of 64, 78, 75, 220 is 1.

2. How to Find the GCF of 64, 78, 75, 220

Answer: Greatest Common Factor(GCF) of 64, 78, 75, 220 = 1

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

Step 2: Then multiply all the prime factors GCF(64, 78, 75, 220) = 1.