Greatest Common Factor of 90, 88, 21, 959

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

• Greatest Common Factor of 90, 88, 21, 959 by common division method
• Greatest Common Factor of 90, 88, 21, 959 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 88

List of positive integer factors of 88 that divides 88 without a remainder.

1,2,4,8,11,22,44,88

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 959

List of positive integer factors of 959 that divides 959 without a remainder.

1,7,137,959

Greatest Common Factor

We found the factors 90,88,21,959 . The biggest common factor number is the GCF number.
So the greatest common factor 90,88,21,959 is 1.

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

• GCF of 57, 70, 20, 647
• GCF of 41, 95, 61, 398
• GCF of 13, 50, 50, 739
• GCF of 97, 79, 56, 743
• GCF of 47, 28, 89, 437

1. What is the GCF of 90, 88, 21, 959?

Answer: GCF of 90, 88, 21, 959 is 1.

2. How to Find the GCF of 90, 88, 21, 959

Answer: Greatest Common Factor(GCF) of 90, 88, 21, 959 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 88, 21, 959) = 1.