Greatest Common Factor of 16, 70, 405

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

• Greatest Common Factor of 16, 70, 405 by common division method
• Greatest Common Factor of 16, 70, 405 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 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

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 405

List of positive integer factors of 405 that divides 405 without a remainder.

1,3,5,9,15,27,45,81,135,405

Greatest Common Factor

We found the factors 16,70,405 . The biggest common factor number is the GCF number.
So the greatest common factor 16,70,405 is 1.

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

• GCF of 26, 75, 641
• GCF of 95, 11, 723
• GCF of 94, 63, 245
• GCF of 19, 13, 626
• GCF of 71, 42, 246

1. What is the GCF of 16, 70, 405?

Answer: GCF of 16, 70, 405 is 1.

2. How to Find the GCF of 16, 70, 405

Answer: Greatest Common Factor(GCF) of 16, 70, 405 = 1

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

Step 2: Then multiply all the prime factors GCF(16, 70, 405) = 1.