Greatest Common Factor of 420, 170, 785

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

• Greatest Common Factor of 420, 170, 785 by common division method
• Greatest Common Factor of 420, 170, 785 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 170

List of positive integer factors of 170 that divides 170 without a remainder.

1,2,5,10,17,34,85,170

Factors of 785

List of positive integer factors of 785 that divides 785 without a remainder.

1,5,157,785

Greatest Common Factor

We found the factors 420,170,785 . The biggest common factor number is the GCF number.
So the greatest common factor 420,170,785 is 5.

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

• GCF of 985, 881, 915
• GCF of 974, 401, 348
• GCF of 709, 951, 198
• GCF of 531, 295, 758
• GCF of 579, 454, 794

1. What is the GCF of 420, 170, 785?

Answer: GCF of 420, 170, 785 is 5.

2. How to Find the GCF of 420, 170, 785

Answer: Greatest Common Factor(GCF) of 420, 170, 785 = 5

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

Step 2: Then multiply all the prime factors GCF(420, 170, 785) = 5.