Greatest Common Factor of 21, 74, 606, 180

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

• Greatest Common Factor of 21, 74, 606, 180 by common division method
• Greatest Common Factor of 21, 74, 606, 180 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 21

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

1,3,7,21

Factors of 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Factors of 606

List of positive integer factors of 606 that divides 606 without a remainder.

1,2,3,6,101,202,303,606

Factors of 180

List of positive integer factors of 180 that divides 180 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,30,36,45,60,90,180

Greatest Common Factor

We found the factors 21,74,606,180 . The biggest common factor number is the GCF number.
So the greatest common factor 21,74,606,180 is 1.

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

• GCF of 61, 17, 178, 277
• GCF of 51, 41, 294, 203
• GCF of 49, 14, 407, 442
• GCF of 23, 14, 765, 969
• GCF of 58, 95, 295, 635

1. What is the GCF of 21, 74, 606, 180?

Answer: GCF of 21, 74, 606, 180 is 1.

2. How to Find the GCF of 21, 74, 606, 180

Answer: Greatest Common Factor(GCF) of 21, 74, 606, 180 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 74, 606, 180) = 1.