Greatest Common Factor of 40, 39, 90, 155

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

• Greatest Common Factor of 40, 39, 90, 155 by common division method
• Greatest Common Factor of 40, 39, 90, 155 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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 155

List of positive integer factors of 155 that divides 155 without a remainder.

1,5,31,155

Greatest Common Factor

We found the factors 40,39,90,155 . The biggest common factor number is the GCF number.
So the greatest common factor 40,39,90,155 is 1.

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

• GCF of 82, 50, 63, 956
• GCF of 93, 19, 88, 121
• GCF of 40, 37, 33, 406
• GCF of 53, 33, 24, 357
• GCF of 45, 46, 41, 734

1. What is the GCF of 40, 39, 90, 155?

Answer: GCF of 40, 39, 90, 155 is 1.

2. How to Find the GCF of 40, 39, 90, 155

Answer: Greatest Common Factor(GCF) of 40, 39, 90, 155 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 39, 90, 155) = 1.