Greatest Common Factor of 76, 21, 620

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

• Greatest Common Factor of 76, 21, 620 by common division method
• Greatest Common Factor of 76, 21, 620 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 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 21

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

1,3,7,21

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

Greatest Common Factor

We found the factors 76,21,620 . The biggest common factor number is the GCF number.
So the greatest common factor 76,21,620 is 1.

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

• GCF of 68, 98, 324
• GCF of 12, 70, 285
• GCF of 90, 45, 373
• GCF of 22, 12, 180
• GCF of 99, 44, 173

1. What is the GCF of 76, 21, 620?

Answer: GCF of 76, 21, 620 is 1.

2. How to Find the GCF of 76, 21, 620

Answer: Greatest Common Factor(GCF) of 76, 21, 620 = 1

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

Step 2: Then multiply all the prime factors GCF(76, 21, 620) = 1.