Greatest Common Factor of 30, 40, 69, 945

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

• Greatest Common Factor of 30, 40, 69, 945 by common division method
• Greatest Common Factor of 30, 40, 69, 945 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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

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 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 945

List of positive integer factors of 945 that divides 945 without a remainder.

1,3,5,7,9,15,21,27,35,45,63,105,135,189,315,945

Greatest Common Factor

We found the factors 30,40,69,945 . The biggest common factor number is the GCF number.
So the greatest common factor 30,40,69,945 is 1.

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

• GCF of 24, 94, 31, 657
• GCF of 73, 56, 41, 761
• GCF of 13, 72, 73, 141
• GCF of 61, 82, 25, 136
• GCF of 46, 12, 51, 453

1. What is the GCF of 30, 40, 69, 945?

Answer: GCF of 30, 40, 69, 945 is 1.

2. How to Find the GCF of 30, 40, 69, 945

Answer: Greatest Common Factor(GCF) of 30, 40, 69, 945 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 40, 69, 945) = 1.