Greatest Common Factor of 548, 155, 21

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

• Greatest Common Factor of 548, 155, 21 by common division method
• Greatest Common Factor of 548, 155, 21 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 548

List of positive integer factors of 548 that divides 548 without a remainder.

1,2,4,137,274,548

Factors of 155

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

1,5,31,155

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Greatest Common Factor

We found the factors 548,155,21 . The biggest common factor number is the GCF number.
So the greatest common factor 548,155,21 is 1.

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

• GCF of 146, 848, 23
• GCF of 261, 751, 78
• GCF of 921, 512, 27
• GCF of 907, 685, 67
• GCF of 447, 773, 20

1. What is the GCF of 548, 155, 21?

Answer: GCF of 548, 155, 21 is 1.

2. How to Find the GCF of 548, 155, 21

Answer: Greatest Common Factor(GCF) of 548, 155, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(548, 155, 21) = 1.