Greatest Common Factor of 63, 60, 66, 78

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

• Greatest Common Factor of 63, 60, 66, 78 by common division method
• Greatest Common Factor of 63, 60, 66, 78 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Greatest Common Factor

We found the factors 63,60,66,78 . The biggest common factor number is the GCF number.
So the greatest common factor 63,60,66,78 is 3.

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

• GCF of 61, 33, 91, 69
• GCF of 42, 80, 56, 13
• GCF of 49, 86, 78, 42
• GCF of 12, 53, 90, 71
• GCF of 95, 25, 98, 31

1. What is the GCF of 63, 60, 66, 78?

Answer: GCF of 63, 60, 66, 78 is 3.

2. How to Find the GCF of 63, 60, 66, 78

Answer: Greatest Common Factor(GCF) of 63, 60, 66, 78 = 3

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

Step 2: Then multiply all the prime factors GCF(63, 60, 66, 78) = 3.