Greatest Common Factor of 90, 69, 25, 15

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

• Greatest Common Factor of 90, 69, 25, 15 by common division method
• Greatest Common Factor of 90, 69, 25, 15 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 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Greatest Common Factor

We found the factors 90,69,25,15 . The biggest common factor number is the GCF number.
So the greatest common factor 90,69,25,15 is 1.

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

• GCF of 12, 58, 41, 42
• GCF of 22, 85, 30, 27
• GCF of 99, 57, 29, 57
• GCF of 30, 55, 40, 84
• GCF of 64, 29, 65, 31

1. What is the GCF of 90, 69, 25, 15?

Answer: GCF of 90, 69, 25, 15 is 1.

2. How to Find the GCF of 90, 69, 25, 15

Answer: Greatest Common Factor(GCF) of 90, 69, 25, 15 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 69, 25, 15) = 1.