Greatest Common Factor of 28, 16, 70, 155

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

• Greatest Common Factor of 28, 16, 70, 155 by common division method
• Greatest Common Factor of 28, 16, 70, 155 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 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 155

List of positive integer factors of 155 that divides 155 without a remainder.

1,5,31,155

Greatest Common Factor

We found the factors 28,16,70,155 . The biggest common factor number is the GCF number.
So the greatest common factor 28,16,70,155 is 1.

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

• GCF of 46, 41, 56, 404
• GCF of 99, 35, 29, 192
• GCF of 55, 54, 52, 565
• GCF of 10, 22, 36, 790
• GCF of 56, 37, 51, 876

1. What is the GCF of 28, 16, 70, 155?

Answer: GCF of 28, 16, 70, 155 is 1.

2. How to Find the GCF of 28, 16, 70, 155

Answer: Greatest Common Factor(GCF) of 28, 16, 70, 155 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 16, 70, 155) = 1.