Greatest Common Factor of 20, 91, 43, 290

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

• Greatest Common Factor of 20, 91, 43, 290 by common division method
• Greatest Common Factor of 20, 91, 43, 290 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 290

List of positive integer factors of 290 that divides 290 without a remainder.

1,2,5,10,29,58,145,290

Greatest Common Factor

We found the factors 20,91,43,290 . The biggest common factor number is the GCF number.
So the greatest common factor 20,91,43,290 is 1.

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

• GCF of 40, 34, 60, 211
• GCF of 58, 38, 29, 509
• GCF of 39, 62, 59, 878
• GCF of 25, 60, 59, 396
• GCF of 48, 57, 87, 393

1. What is the GCF of 20, 91, 43, 290?

Answer: GCF of 20, 91, 43, 290 is 1.

2. How to Find the GCF of 20, 91, 43, 290

Answer: Greatest Common Factor(GCF) of 20, 91, 43, 290 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 91, 43, 290) = 1.