Greatest Common Factor of 55, 72, 21, 849

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

• Greatest Common Factor of 55, 72, 21, 849 by common division method
• Greatest Common Factor of 55, 72, 21, 849 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 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 21

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

1,3,7,21

Factors of 849

List of positive integer factors of 849 that divides 849 without a remainder.

1,3,283,849

Greatest Common Factor

We found the factors 55,72,21,849 . The biggest common factor number is the GCF number.
So the greatest common factor 55,72,21,849 is 1.

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

• GCF of 21, 52, 11, 178
• GCF of 76, 94, 55, 640
• GCF of 41, 87, 30, 563
• GCF of 65, 44, 31, 958
• GCF of 93, 97, 13, 604

1. What is the GCF of 55, 72, 21, 849?

Answer: GCF of 55, 72, 21, 849 is 1.

2. How to Find the GCF of 55, 72, 21, 849

Answer: Greatest Common Factor(GCF) of 55, 72, 21, 849 = 1

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

Step 2: Then multiply all the prime factors GCF(55, 72, 21, 849) = 1.