Greatest Common Factor of 90, 72, 18, 715

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

• Greatest Common Factor of 90, 72, 18, 715 by common division method
• Greatest Common Factor of 90, 72, 18, 715 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 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

Factors of 715

List of positive integer factors of 715 that divides 715 without a remainder.

1,5,11,13,55,65,143,715

Greatest Common Factor

We found the factors 90,72,18,715 . The biggest common factor number is the GCF number.
So the greatest common factor 90,72,18,715 is 1.

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

• GCF of 77, 29, 69, 833
• GCF of 65, 72, 13, 484
• GCF of 75, 95, 82, 165
• GCF of 53, 96, 69, 535
• GCF of 23, 71, 82, 753

1. What is the GCF of 90, 72, 18, 715?

Answer: GCF of 90, 72, 18, 715 is 1.

2. How to Find the GCF of 90, 72, 18, 715

Answer: Greatest Common Factor(GCF) of 90, 72, 18, 715 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 72, 18, 715) = 1.