Greatest Common Factor of 85, 40, 72, 210

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

• Greatest Common Factor of 85, 40, 72, 210 by common division method
• Greatest Common Factor of 85, 40, 72, 210 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 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 210

List of positive integer factors of 210 that divides 210 without a remainder.

1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210

Greatest Common Factor

We found the factors 85,40,72,210 . The biggest common factor number is the GCF number.
So the greatest common factor 85,40,72,210 is 1.

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

• GCF of 21, 17, 21, 447
• GCF of 61, 51, 73, 426
• GCF of 36, 75, 47, 668
• GCF of 60, 55, 71, 780
• GCF of 79, 51, 56, 620

1. What is the GCF of 85, 40, 72, 210?

Answer: GCF of 85, 40, 72, 210 is 1.

2. How to Find the GCF of 85, 40, 72, 210

Answer: Greatest Common Factor(GCF) of 85, 40, 72, 210 = 1

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

Step 2: Then multiply all the prime factors GCF(85, 40, 72, 210) = 1.