Greatest Common Factor of 28, 73, 10, 25, 420, 17, 54, 391, 56, 43

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

• Greatest Common Factor of 28, 73, 10, 25, 420, 17, 54, 391, 56, 43 by common division method
• Greatest Common Factor of 28, 73, 10, 25, 420, 17, 54, 391, 56, 43 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ 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 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 17

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

1,17

Factors of 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Factors of 391

List of positive integer factors of 391 that divides 391 without a remainder.

1,17,23,391

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Greatest Common Factor

We found the factors 28,73,10,25,420,17,54,391,56,43 . The biggest common factor number is the GCF number.
So the greatest common factor 28,73,10,25,420,17,54,391,56,43 is 1.

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

• GCF of 62, 73, 84, 86, 536, 76, 78, 864, 65, 21
• GCF of 54, 12, 76, 84, 277, 73, 17, 177, 57, 75
• GCF of 18, 12, 11, 20, 942, 44, 88, 331, 58, 56
• GCF of 51, 25, 24, 69, 580, 57, 44, 378, 30, 76
• GCF of 90, 97, 19, 38, 947, 48, 56, 706, 34, 76

1. What is the GCF of 28, 73, 10, 25, 420, 17, 54, 391, 56, 43?

Answer: GCF of 28, 73, 10, 25, 420, 17, 54, 391, 56, 43 is 1.

2. How to Find the GCF of 28, 73, 10, 25, 420, 17, 54, 391, 56, 43

Answer: Greatest Common Factor(GCF) of 28, 73, 10, 25, 420, 17, 54, 391, 56, 43 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 73, 10, 25, 420, 17, 54, 391, 56, 43) = 1.