Greatest Common Factor of 790, 258, 21

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

• Greatest Common Factor of 790, 258, 21 by common division method
• Greatest Common Factor of 790, 258, 21 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

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 258

List of positive integer factors of 258 that divides 258 without a remainder.

1,2,3,6,43,86,129,258

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Greatest Common Factor

We found the factors 790,258,21 . The biggest common factor number is the GCF number.
So the greatest common factor 790,258,21 is 1.

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

• GCF of 327, 737, 75
• GCF of 313, 943, 48
• GCF of 224, 338, 36
• GCF of 595, 287, 43
• GCF of 117, 364, 38

1. What is the GCF of 790, 258, 21?

Answer: GCF of 790, 258, 21 is 1.

2. How to Find the GCF of 790, 258, 21

Answer: Greatest Common Factor(GCF) of 790, 258, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(790, 258, 21) = 1.