Greatest Common Factor of 10, +15, +20

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

• Greatest Common Factor of 10, +15, +20 by common division method
• Greatest Common Factor of 10, +15, +20 with matching the biggest common factor

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

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 15

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

1,3,5,15

Factors of 20

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

1,2,4,5,10,20

Greatest Common Factor

We found the factors 10,+15,+20 . The biggest common factor number is the GCF number.
So the greatest common factor 10,+15,+20 is 5.

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

• GCF of 40, 230, 237
• GCF of 62, 316, 985
• GCF of 52, 731, 629
• GCF of 39, 279, 524
• GCF of 97, 705, 257

1. What is the GCF of 10, +15, +20?

Answer: GCF of 10, +15, +20 is 5.

2. How to Find the GCF of 10, +15, +20

Answer: Greatest Common Factor(GCF) of 10, +15, +20 = 5

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

Step 2: Then multiply all the prime factors GCF(10, +15, +20) = 5.