Greatest Common Factor of 313, 620, 21

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

• Greatest Common Factor of 313, 620, 21 by common division method
• Greatest Common Factor of 313, 620, 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 313

List of positive integer factors of 313 that divides 313 without a remainder.

1,313

Factors of 620

List of positive integer factors of 620 that divides 620 without a remainder.

1,2,4,5,10,20,31,62,124,155,310,620

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 313,620,21 . The biggest common factor number is the GCF number.
So the greatest common factor 313,620,21 is 1.

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

• GCF of 689, 754, 13
• GCF of 782, 132, 17
• GCF of 414, 457, 52
• GCF of 325, 434, 90
• GCF of 755, 902, 41

1. What is the GCF of 313, 620, 21?

Answer: GCF of 313, 620, 21 is 1.

2. How to Find the GCF of 313, 620, 21

Answer: Greatest Common Factor(GCF) of 313, 620, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(313, 620, 21) = 1.