Greatest Common Factor of 90, 40, 17, 129

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

• Greatest Common Factor of 90, 40, 17, 129 by common division method
• Greatest Common Factor of 90, 40, 17, 129 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 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 40

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

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

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 129

List of positive integer factors of 129 that divides 129 without a remainder.

1,3,43,129

Greatest Common Factor

We found the factors 90,40,17,129 . The biggest common factor number is the GCF number.
So the greatest common factor 90,40,17,129 is 1.

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

• GCF of 42, 53, 82, 232
• GCF of 90, 39, 22, 120
• GCF of 25, 40, 56, 249
• GCF of 11, 76, 49, 938
• GCF of 76, 13, 46, 718

1. What is the GCF of 90, 40, 17, 129?

Answer: GCF of 90, 40, 17, 129 is 1.

2. How to Find the GCF of 90, 40, 17, 129

Answer: Greatest Common Factor(GCF) of 90, 40, 17, 129 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 40, 17, 129) = 1.