Greatest Common Factor of 790, 820, 420

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

• Greatest Common Factor of 790, 820, 420 by common division method
• Greatest Common Factor of 790, 820, 420 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 x 5 = 10

Factors of 790

List of positive integer factors of 790 that divides 790 without a remainder.

1,2,5,10,79,158,395,790

Factors of 820

List of positive integer factors of 820 that divides 820 without a remainder.

1,2,4,5,10,20,41,82,164,205,410,820

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

Greatest Common Factor

We found the factors 790,820,420 . The biggest common factor number is the GCF number.
So the greatest common factor 790,820,420 is 10.

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

• GCF of 252, 415, 702
• GCF of 761, 225, 790
• GCF of 752, 378, 243
• GCF of 131, 552, 934
• GCF of 169, 216, 443

1. What is the GCF of 790, 820, 420?

Answer: GCF of 790, 820, 420 is 10.

2. How to Find the GCF of 790, 820, 420

Answer: Greatest Common Factor(GCF) of 790, 820, 420 = 10

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

Step 2: Then multiply all the prime factors GCF(790, 820, 420) = 10.