Greatest Common Factor of 21, 66, 46, 45, 50

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

• Greatest Common Factor of 21, 66, 46, 45, 50 by common division method
• Greatest Common Factor of 21, 66, 46, 45, 50 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 46

List of positive integer factors of 46 that divides 46 without a remainder.

1,2,23,46

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 50

List of positive integer factors of 50 that divides 50 without a remainder.

1,2,5,10,25,50

Greatest Common Factor

We found the factors 21,66,46,45,50 . The biggest common factor number is the GCF number.
So the greatest common factor 21,66,46,45,50 is 1.

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

• GCF of 52, 85, 23, 53, 16
• GCF of 55, 73, 13, 81, 34
• GCF of 74, 25, 37, 89, 60
• GCF of 87, 74, 60, 89, 70
• GCF of 45, 94, 26, 81, 98

1. What is the GCF of 21, 66, 46, 45, 50?

Answer: GCF of 21, 66, 46, 45, 50 is 1.

2. How to Find the GCF of 21, 66, 46, 45, 50

Answer: Greatest Common Factor(GCF) of 21, 66, 46, 45, 50 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 66, 46, 45, 50) = 1.