Greatest Common Factor of 71, 63, 28, 156

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

• Greatest Common Factor of 71, 63, 28, 156 by common division method
• Greatest Common Factor of 71, 63, 28, 156 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 63

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

1,3,7,9,21,63

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 156

List of positive integer factors of 156 that divides 156 without a remainder.

1,2,3,4,6,12,13,26,39,52,78,156

Greatest Common Factor

We found the factors 71,63,28,156 . The biggest common factor number is the GCF number.
So the greatest common factor 71,63,28,156 is 1.

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

• GCF of 43, 70, 32, 372
• GCF of 89, 12, 58, 290
• GCF of 76, 36, 14, 652
• GCF of 28, 29, 65, 979
• GCF of 27, 50, 31, 534

1. What is the GCF of 71, 63, 28, 156?

Answer: GCF of 71, 63, 28, 156 is 1.

2. How to Find the GCF of 71, 63, 28, 156

Answer: Greatest Common Factor(GCF) of 71, 63, 28, 156 = 1

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

Step 2: Then multiply all the prime factors GCF(71, 63, 28, 156) = 1.