Greatest Common Factor of 70, 21, 40, 774

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

• Greatest Common Factor of 70, 21, 40, 774 by common division method
• Greatest Common Factor of 70, 21, 40, 774 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 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 21

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

1,3,7,21

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 774

List of positive integer factors of 774 that divides 774 without a remainder.

1,2,3,6,9,18,43,86,129,258,387,774

Greatest Common Factor

We found the factors 70,21,40,774 . The biggest common factor number is the GCF number.
So the greatest common factor 70,21,40,774 is 1.

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

• GCF of 67, 69, 89, 347
• GCF of 73, 12, 49, 601
• GCF of 79, 52, 31, 973
• GCF of 85, 95, 13, 547
• GCF of 93, 80, 26, 441

1. What is the GCF of 70, 21, 40, 774?

Answer: GCF of 70, 21, 40, 774 is 1.

2. How to Find the GCF of 70, 21, 40, 774

Answer: Greatest Common Factor(GCF) of 70, 21, 40, 774 = 1

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

Step 2: Then multiply all the prime factors GCF(70, 21, 40, 774) = 1.