Greatest Common Factor of 81, 68, 10, 400

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

• Greatest Common Factor of 81, 68, 10, 400 by common division method
• Greatest Common Factor of 81, 68, 10, 400 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 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 400

List of positive integer factors of 400 that divides 400 without a remainder.

1,2,4,5,8,10,16,20,25,40,50,80,100,200,400

Greatest Common Factor

We found the factors 81,68,10,400 . The biggest common factor number is the GCF number.
So the greatest common factor 81,68,10,400 is 1.

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

• GCF of 83, 12, 93, 659
• GCF of 33, 84, 65, 935
• GCF of 20, 83, 16, 330
• GCF of 13, 91, 91, 147
• GCF of 13, 55, 17, 870

1. What is the GCF of 81, 68, 10, 400?

Answer: GCF of 81, 68, 10, 400 is 1.

2. How to Find the GCF of 81, 68, 10, 400

Answer: Greatest Common Factor(GCF) of 81, 68, 10, 400 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 68, 10, 400) = 1.