Greatest Common Factor of 35, 40, 21, 28

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

• Greatest Common Factor of 35, 40, 21, 28 by common division method
• Greatest Common Factor of 35, 40, 21, 28 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 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

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 21

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

1,3,7,21

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Greatest Common Factor

We found the factors 35,40,21,28 . The biggest common factor number is the GCF number.
So the greatest common factor 35,40,21,28 is 1.

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

• GCF of 69, 16, 94, 53
• GCF of 32, 44, 10, 65
• GCF of 97, 70, 20, 93
• GCF of 76, 28, 45, 31
• GCF of 63, 77, 42, 77

1. What is the GCF of 35, 40, 21, 28?

Answer: GCF of 35, 40, 21, 28 is 1.

2. How to Find the GCF of 35, 40, 21, 28

Answer: Greatest Common Factor(GCF) of 35, 40, 21, 28 = 1

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

Step 2: Then multiply all the prime factors GCF(35, 40, 21, 28) = 1.