Greatest Common Factor of 23, 90, 42, 790

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

• Greatest Common Factor of 23, 90, 42, 790 by common division method
• Greatest Common Factor of 23, 90, 42, 790 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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 790

List of positive integer factors of 790 that divides 790 without a remainder.

1,2,5,10,79,158,395,790

Greatest Common Factor

We found the factors 23,90,42,790 . The biggest common factor number is the GCF number.
So the greatest common factor 23,90,42,790 is 1.

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

• GCF of 70, 30, 31, 660
• GCF of 27, 98, 99, 383
• GCF of 49, 56, 60, 939
• GCF of 94, 79, 62, 383
• GCF of 97, 16, 72, 362

1. What is the GCF of 23, 90, 42, 790?

Answer: GCF of 23, 90, 42, 790 is 1.

2. How to Find the GCF of 23, 90, 42, 790

Answer: Greatest Common Factor(GCF) of 23, 90, 42, 790 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 90, 42, 790) = 1.