Greatest Common Factor of 90, 47, 645

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

• Greatest Common Factor of 90, 47, 645 by common division method
• Greatest Common Factor of 90, 47, 645 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 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Greatest Common Factor

We found the factors 90,47,645 . The biggest common factor number is the GCF number.
So the greatest common factor 90,47,645 is 1.

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

• GCF of 42, 97, 944
• GCF of 86, 15, 608
• GCF of 69, 10, 712
• GCF of 30, 22, 255
• GCF of 71, 47, 684

1. What is the GCF of 90, 47, 645?

Answer: GCF of 90, 47, 645 is 1.

2. How to Find the GCF of 90, 47, 645

Answer: Greatest Common Factor(GCF) of 90, 47, 645 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 47, 645) = 1.