Greatest Common Factor of 90, 13, 72, 161

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

• Greatest Common Factor of 90, 13, 72, 161 by common division method
• Greatest Common Factor of 90, 13, 72, 161 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 161

List of positive integer factors of 161 that divides 161 without a remainder.

1,7,23,161

Greatest Common Factor

We found the factors 90,13,72,161 . The biggest common factor number is the GCF number.
So the greatest common factor 90,13,72,161 is 1.

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

• GCF of 42, 35, 93, 265
• GCF of 75, 98, 87, 299
• GCF of 53, 20, 99, 870
• GCF of 17, 89, 40, 805
• GCF of 28, 31, 97, 514

1. What is the GCF of 90, 13, 72, 161?

Answer: GCF of 90, 13, 72, 161 is 1.

2. How to Find the GCF of 90, 13, 72, 161

Answer: Greatest Common Factor(GCF) of 90, 13, 72, 161 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 13, 72, 161) = 1.