Greatest Common Factor of 90, 24, 77, 72, 18

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

• Greatest Common Factor of 90, 24, 77, 72, 18 by common division method
• Greatest Common Factor of 90, 24, 77, 72, 18 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 24

List of positive integer factors of 24 that divides 24 without a remainder.

1,2,3,4,6,8,12,24

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Greatest Common Factor

We found the factors 90,24,77,72,18 . The biggest common factor number is the GCF number.
So the greatest common factor 90,24,77,72,18 is 1.

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

• GCF of 57, 56, 22, 48, 13
• GCF of 88, 41, 39, 93, 91
• GCF of 55, 86, 81, 32, 70
• GCF of 39, 10, 20, 11, 32
• GCF of 27, 35, 46, 61, 14

1. What is the GCF of 90, 24, 77, 72, 18?

Answer: GCF of 90, 24, 77, 72, 18 is 1.

2. How to Find the GCF of 90, 24, 77, 72, 18

Answer: Greatest Common Factor(GCF) of 90, 24, 77, 72, 18 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 24, 77, 72, 18) = 1.