Greatest Common Factor of 777, 890, 21

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

• Greatest Common Factor of 777, 890, 21 by common division method
• Greatest Common Factor of 777, 890, 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 777

List of positive integer factors of 777 that divides 777 without a remainder.

1,3,7,21,37,111,259,777

Factors of 890

List of positive integer factors of 890 that divides 890 without a remainder.

1,2,5,10,89,178,445,890

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 777,890,21 . The biggest common factor number is the GCF number.
So the greatest common factor 777,890,21 is 1.

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

• GCF of 799, 924, 42
• GCF of 864, 916, 89
• GCF of 557, 589, 96
• GCF of 853, 498, 31
• GCF of 422, 258, 21

1. What is the GCF of 777, 890, 21?

Answer: GCF of 777, 890, 21 is 1.

2. How to Find the GCF of 777, 890, 21

Answer: Greatest Common Factor(GCF) of 777, 890, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(777, 890, 21) = 1.