Greatest Common Factor of 21, 31, 620, 826

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

• Greatest Common Factor of 21, 31, 620, 826 by common division method
• Greatest Common Factor of 21, 31, 620, 826 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

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

Factors of 21

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

1,3,7,21

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

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 826

List of positive integer factors of 826 that divides 826 without a remainder.

1,2,7,14,59,118,413,826

Greatest Common Factor

We found the factors 21,31,620,826 . The biggest common factor number is the GCF number.
So the greatest common factor 21,31,620,826 is 1.

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

• GCF of 14, 51, 912, 173
• GCF of 42, 73, 901, 235
• GCF of 72, 28, 572, 751
• GCF of 47, 28, 824, 763
• GCF of 10, 88, 675, 780

1. What is the GCF of 21, 31, 620, 826?

Answer: GCF of 21, 31, 620, 826 is 1.

2. How to Find the GCF of 21, 31, 620, 826

Answer: Greatest Common Factor(GCF) of 21, 31, 620, 826 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 31, 620, 826) = 1.