Greatest Common Factor of 28, 33, 18, 620

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

• Greatest Common Factor of 28, 33, 18, 620 by common division method
• Greatest Common Factor of 28, 33, 18, 620 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 33

List of positive integer factors of 33 that divides 33 without a remainder.

1,3,11,33

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 620

List of positive integer factors of 620 that divides 620 without a remainder.

1,2,4,5,10,20,31,62,124,155,310,620

Greatest Common Factor

We found the factors 28,33,18,620 . The biggest common factor number is the GCF number.
So the greatest common factor 28,33,18,620 is 1.

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

• GCF of 41, 22, 54, 239
• GCF of 77, 76, 31, 453
• GCF of 75, 45, 25, 447
• GCF of 55, 65, 51, 334
• GCF of 70, 43, 55, 533

1. What is the GCF of 28, 33, 18, 620?

Answer: GCF of 28, 33, 18, 620 is 1.

2. How to Find the GCF of 28, 33, 18, 620

Answer: Greatest Common Factor(GCF) of 28, 33, 18, 620 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 33, 18, 620) = 1.