Greatest Common Factor of 28, 13, 57, 142

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

• Greatest Common Factor of 28, 13, 57, 142 by common division method
• Greatest Common Factor of 28, 13, 57, 142 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 142

List of positive integer factors of 142 that divides 142 without a remainder.

1,2,71,142

Greatest Common Factor

We found the factors 28,13,57,142 . The biggest common factor number is the GCF number.
So the greatest common factor 28,13,57,142 is 1.

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

• GCF of 28, 78, 66, 327
• GCF of 97, 15, 16, 332
• GCF of 84, 96, 78, 420
• GCF of 38, 53, 11, 208
• GCF of 55, 10, 32, 825

1. What is the GCF of 28, 13, 57, 142?

Answer: GCF of 28, 13, 57, 142 is 1.

2. How to Find the GCF of 28, 13, 57, 142

Answer: Greatest Common Factor(GCF) of 28, 13, 57, 142 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 13, 57, 142) = 1.