Greatest Common Factor of 370, 165, 21

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

• Greatest Common Factor of 370, 165, 21 by common division method
• Greatest Common Factor of 370, 165, 21 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 370

List of positive integer factors of 370 that divides 370 without a remainder.

1,2,5,10,37,74,185,370

Factors of 165

List of positive integer factors of 165 that divides 165 without a remainder.

1,3,5,11,15,33,55,165

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 370,165,21 . The biggest common factor number is the GCF number.
So the greatest common factor 370,165,21 is 1.

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

• GCF of 429, 716, 81
• GCF of 914, 984, 51
• GCF of 990, 138, 97
• GCF of 761, 856, 32
• GCF of 459, 135, 90

1. What is the GCF of 370, 165, 21?

Answer: GCF of 370, 165, 21 is 1.

2. How to Find the GCF of 370, 165, 21

Answer: Greatest Common Factor(GCF) of 370, 165, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(370, 165, 21) = 1.