Greatest Common Factor of 15, 21, 946

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

• Greatest Common Factor of 15, 21, 946 by common division method
• Greatest Common Factor of 15, 21, 946 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 21

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

1,3,7,21

Factors of 946

List of positive integer factors of 946 that divides 946 without a remainder.

1,2,11,22,43,86,473,946

Greatest Common Factor

We found the factors 15,21,946 . The biggest common factor number is the GCF number.
So the greatest common factor 15,21,946 is 1.

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

• GCF of 94, 45, 646
• GCF of 10, 73, 890
• GCF of 57, 15, 180
• GCF of 94, 10, 777
• GCF of 53, 87, 605

1. What is the GCF of 15, 21, 946?

Answer: GCF of 15, 21, 946 is 1.

2. How to Find the GCF of 15, 21, 946

Answer: Greatest Common Factor(GCF) of 15, 21, 946 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 21, 946) = 1.