Greatest Common Factor of 90, 79, 79, 642

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

• Greatest Common Factor of 90, 79, 79, 642 by common division method
• Greatest Common Factor of 90, 79, 79, 642 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 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Greatest Common Factor

We found the factors 90,79,79,642 . The biggest common factor number is the GCF number.
So the greatest common factor 90,79,79,642 is 1.

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

• GCF of 68, 86, 21, 991
• GCF of 72, 30, 20, 790
• GCF of 43, 19, 18, 543
• GCF of 42, 14, 27, 744
• GCF of 31, 35, 26, 596

1. What is the GCF of 90, 79, 79, 642?

Answer: GCF of 90, 79, 79, 642 is 1.

2. How to Find the GCF of 90, 79, 79, 642

Answer: Greatest Common Factor(GCF) of 90, 79, 79, 642 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 79, 79, 642) = 1.