Greatest Common Factor of 72, 28, 66, 287

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

• Greatest Common Factor of 72, 28, 66, 287 by common division method
• Greatest Common Factor of 72, 28, 66, 287 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 28

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

1,2,4,7,14,28

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 287

List of positive integer factors of 287 that divides 287 without a remainder.

1,7,41,287

Greatest Common Factor

We found the factors 72,28,66,287 . The biggest common factor number is the GCF number.
So the greatest common factor 72,28,66,287 is 1.

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

• GCF of 30, 12, 82, 368
• GCF of 46, 25, 66, 209
• GCF of 78, 78, 51, 781
• GCF of 18, 62, 87, 837
• GCF of 20, 42, 21, 857

1. What is the GCF of 72, 28, 66, 287?

Answer: GCF of 72, 28, 66, 287 is 1.

2. How to Find the GCF of 72, 28, 66, 287

Answer: Greatest Common Factor(GCF) of 72, 28, 66, 287 = 1

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

Step 2: Then multiply all the prime factors GCF(72, 28, 66, 287) = 1.