Greatest Common Factor of 90, 45, 12, 520

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

• Greatest Common Factor of 90, 45, 12, 520 by common division method
• Greatest Common Factor of 90, 45, 12, 520 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 520

List of positive integer factors of 520 that divides 520 without a remainder.

1,2,4,5,8,10,13,20,26,40,52,65,104,130,260,520

Greatest Common Factor

We found the factors 90,45,12,520 . The biggest common factor number is the GCF number.
So the greatest common factor 90,45,12,520 is 1.

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

• GCF of 80, 88, 41, 232
• GCF of 95, 34, 41, 812
• GCF of 47, 55, 64, 132
• GCF of 79, 63, 15, 145
• GCF of 76, 93, 66, 255

1. What is the GCF of 90, 45, 12, 520?

Answer: GCF of 90, 45, 12, 520 is 1.

2. How to Find the GCF of 90, 45, 12, 520

Answer: Greatest Common Factor(GCF) of 90, 45, 12, 520 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 45, 12, 520) = 1.