Greatest Common Factor of 30, 21, 90, 46

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

• Greatest Common Factor of 30, 21, 90, 46 by common division method
• Greatest Common Factor of 30, 21, 90, 46 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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 21

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

1,3,7,21

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 46

List of positive integer factors of 46 that divides 46 without a remainder.

1,2,23,46

Greatest Common Factor

We found the factors 30,21,90,46 . The biggest common factor number is the GCF number.
So the greatest common factor 30,21,90,46 is 1.

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

• GCF of 62, 57, 10, 33
• GCF of 37, 57, 87, 34
• GCF of 13, 45, 75, 38
• GCF of 24, 50, 98, 31
• GCF of 56, 39, 32, 61

1. What is the GCF of 30, 21, 90, 46?

Answer: GCF of 30, 21, 90, 46 is 1.

2. How to Find the GCF of 30, 21, 90, 46

Answer: Greatest Common Factor(GCF) of 30, 21, 90, 46 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 21, 90, 46) = 1.