Greatest Common Factor of 90, 59, 21, 215

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

• Greatest Common Factor of 90, 59, 21, 215 by common division method
• Greatest Common Factor of 90, 59, 21, 215 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 59

List of positive integer factors of 59 that divides 59 without a remainder.

1,59

Factors of 21

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

1,3,7,21

Factors of 215

List of positive integer factors of 215 that divides 215 without a remainder.

1,5,43,215

Greatest Common Factor

We found the factors 90,59,21,215 . The biggest common factor number is the GCF number.
So the greatest common factor 90,59,21,215 is 1.

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

• GCF of 66, 42, 44, 788
• GCF of 16, 75, 62, 915
• GCF of 31, 62, 87, 374
• GCF of 50, 43, 97, 130
• GCF of 15, 45, 90, 542

1. What is the GCF of 90, 59, 21, 215?

Answer: GCF of 90, 59, 21, 215 is 1.

2. How to Find the GCF of 90, 59, 21, 215

Answer: Greatest Common Factor(GCF) of 90, 59, 21, 215 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 59, 21, 215) = 1.