Greatest Common Factor of 11, 70, 87, 640

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

• Greatest Common Factor of 11, 70, 87, 640 by common division method
• Greatest Common Factor of 11, 70, 87, 640 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 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 640

List of positive integer factors of 640 that divides 640 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640

Greatest Common Factor

We found the factors 11,70,87,640 . The biggest common factor number is the GCF number.
So the greatest common factor 11,70,87,640 is 1.

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

• GCF of 50, 58, 90, 674
• GCF of 74, 66, 31, 659
• GCF of 77, 94, 84, 170
• GCF of 54, 70, 24, 312
• GCF of 68, 65, 79, 195

1. What is the GCF of 11, 70, 87, 640?

Answer: GCF of 11, 70, 87, 640 is 1.

2. How to Find the GCF of 11, 70, 87, 640

Answer: Greatest Common Factor(GCF) of 11, 70, 87, 640 = 1

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

Step 2: Then multiply all the prime factors GCF(11, 70, 87, 640) = 1.