Greatest Common Factor of 19, 21, 61, 50

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

• Greatest Common Factor of 19, 21, 61, 50 by common division method
• Greatest Common Factor of 19, 21, 61, 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 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 21

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

1,3,7,21

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

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 19,21,61,50 . The biggest common factor number is the GCF number.
So the greatest common factor 19,21,61,50 is 1.

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

• GCF of 37, 70, 87, 91
• GCF of 53, 59, 17, 13
• GCF of 36, 23, 39, 33
• GCF of 49, 91, 33, 69
• GCF of 66, 36, 56, 64

1. What is the GCF of 19, 21, 61, 50?

Answer: GCF of 19, 21, 61, 50 is 1.

2. How to Find the GCF of 19, 21, 61, 50

Answer: Greatest Common Factor(GCF) of 19, 21, 61, 50 = 1

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

Step 2: Then multiply all the prime factors GCF(19, 21, 61, 50) = 1.