Greatest Common Factor of 64, 7, 42, 45

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

• Greatest Common Factor of 64, 7, 42, 45 by common division method
• Greatest Common Factor of 64, 7, 42, 45 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 7

List of positive integer factors of 7 that divides 7 without a remainder.

1,7

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Greatest Common Factor

We found the factors 64,7,42,45 . The biggest common factor number is the GCF number.
So the greatest common factor 64,7,42,45 is 1.

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

• GCF of 30, 8, 54, 41
• GCF of 58, 8, 29, 78
• GCF of 49, 3, 41, 47
• GCF of 90, 3, 35, 35
• GCF of 38, 9, 84, 91

1. What is the GCF of 64, 7, 42, 45?

Answer: GCF of 64, 7, 42, 45 is 1.

2. How to Find the GCF of 64, 7, 42, 45

Answer: Greatest Common Factor(GCF) of 64, 7, 42, 45 = 1

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

Step 2: Then multiply all the prime factors GCF(64, 7, 42, 45) = 1.