Greatest Common Factor of 15, 75, 20, 215

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

• Greatest Common Factor of 15, 75, 20, 215 by common division method
• Greatest Common Factor of 15, 75, 20, 215 with matching the biggest common factor

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∴ So the GCF of the given numbers is 5 = 5

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 215

List of positive integer factors of 215 that divides 215 without a remainder.

1,5,43,215

Greatest Common Factor

We found the factors 15,75,20,215 . The biggest common factor number is the GCF number.
So the greatest common factor 15,75,20,215 is 5.

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

• GCF of 43, 49, 24, 474
• GCF of 51, 14, 68, 841
• GCF of 82, 66, 90, 632
• GCF of 20, 17, 58, 466
• GCF of 77, 60, 57, 161

1. What is the GCF of 15, 75, 20, 215?

Answer: GCF of 15, 75, 20, 215 is 5.

2. How to Find the GCF of 15, 75, 20, 215

Answer: Greatest Common Factor(GCF) of 15, 75, 20, 215 = 5

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

Step 2: Then multiply all the prime factors GCF(15, 75, 20, 215) = 5.