Greatest Common Factor of 21, 38, 53, 915

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

• Greatest Common Factor of 21, 38, 53, 915 by common division method
• Greatest Common Factor of 21, 38, 53, 915 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ 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 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 53

List of positive integer factors of 53 that divides 53 without a remainder.

1,53

Factors of 915

List of positive integer factors of 915 that divides 915 without a remainder.

1,3,5,15,61,183,305,915

Greatest Common Factor

We found the factors 21,38,53,915 . The biggest common factor number is the GCF number.
So the greatest common factor 21,38,53,915 is 1.

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

• GCF of 52, 39, 95, 133
• GCF of 42, 50, 40, 179
• GCF of 85, 56, 89, 616
• GCF of 30, 91, 88, 717
• GCF of 98, 55, 87, 476

1. What is the GCF of 21, 38, 53, 915?

Answer: GCF of 21, 38, 53, 915 is 1.

2. How to Find the GCF of 21, 38, 53, 915

Answer: Greatest Common Factor(GCF) of 21, 38, 53, 915 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 38, 53, 915) = 1.