Greatest Common Factor of 71, 64, 42, 289

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

• Greatest Common Factor of 71, 64, 42, 289 by common division method
• Greatest Common Factor of 71, 64, 42, 289 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 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

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 42

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

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

Factors of 289

List of positive integer factors of 289 that divides 289 without a remainder.

1,17,289

Greatest Common Factor

We found the factors 71,64,42,289 . The biggest common factor number is the GCF number.
So the greatest common factor 71,64,42,289 is 1.

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

• GCF of 78, 77, 47, 232
• GCF of 19, 34, 76, 603
• GCF of 86, 47, 26, 899
• GCF of 39, 20, 84, 751
• GCF of 52, 38, 53, 400

1. What is the GCF of 71, 64, 42, 289?

Answer: GCF of 71, 64, 42, 289 is 1.

2. How to Find the GCF of 71, 64, 42, 289

Answer: Greatest Common Factor(GCF) of 71, 64, 42, 289 = 1

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

Step 2: Then multiply all the prime factors GCF(71, 64, 42, 289) = 1.