Greatest Common Factor of 40, 55, 45, 989

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

• Greatest Common Factor of 40, 55, 45, 989 by common division method
• Greatest Common Factor of 40, 55, 45, 989 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 989

List of positive integer factors of 989 that divides 989 without a remainder.

1,23,43,989

Greatest Common Factor

We found the factors 40,55,45,989 . The biggest common factor number is the GCF number.
So the greatest common factor 40,55,45,989 is 1.

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

• GCF of 51, 74, 63, 564
• GCF of 23, 15, 50, 977
• GCF of 35, 46, 15, 394
• GCF of 97, 24, 87, 606
• GCF of 23, 74, 22, 724

1. What is the GCF of 40, 55, 45, 989?

Answer: GCF of 40, 55, 45, 989 is 1.

2. How to Find the GCF of 40, 55, 45, 989

Answer: Greatest Common Factor(GCF) of 40, 55, 45, 989 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 55, 45, 989) = 1.