Greatest Common Factor of 420, 285, 815

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

• Greatest Common Factor of 420, 285, 815 by common division method
• Greatest Common Factor of 420, 285, 815 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

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

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 285

List of positive integer factors of 285 that divides 285 without a remainder.

1,3,5,15,19,57,95,285

Factors of 815

List of positive integer factors of 815 that divides 815 without a remainder.

1,5,163,815

Greatest Common Factor

We found the factors 420,285,815 . The biggest common factor number is the GCF number.
So the greatest common factor 420,285,815 is 5.

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

• GCF of 495, 468, 238
• GCF of 332, 347, 285
• GCF of 558, 946, 346
• GCF of 394, 364, 665
• GCF of 661, 621, 121

1. What is the GCF of 420, 285, 815?

Answer: GCF of 420, 285, 815 is 5.

2. How to Find the GCF of 420, 285, 815

Answer: Greatest Common Factor(GCF) of 420, 285, 815 = 5

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

Step 2: Then multiply all the prime factors GCF(420, 285, 815) = 5.