Greatest Common Factor of 28, 17, 99, 784

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

• Greatest Common Factor of 28, 17, 99, 784 by common division method
• Greatest Common Factor of 28, 17, 99, 784 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 28

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

1,2,4,7,14,28

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Factors of 784

List of positive integer factors of 784 that divides 784 without a remainder.

1,2,4,7,8,14,16,28,49,56,98,112,196,392,784

Greatest Common Factor

We found the factors 28,17,99,784 . The biggest common factor number is the GCF number.
So the greatest common factor 28,17,99,784 is 1.

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

• GCF of 39, 59, 58, 737
• GCF of 29, 42, 65, 794
• GCF of 72, 62, 80, 326
• GCF of 70, 60, 68, 356
• GCF of 49, 20, 67, 257

1. What is the GCF of 28, 17, 99, 784?

Answer: GCF of 28, 17, 99, 784 is 1.

2. How to Find the GCF of 28, 17, 99, 784

Answer: Greatest Common Factor(GCF) of 28, 17, 99, 784 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 17, 99, 784) = 1.