Greatest Common Factor of 221, 620, 438

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

• Greatest Common Factor of 221, 620, 438 by common division method
• Greatest Common Factor of 221, 620, 438 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 221

List of positive integer factors of 221 that divides 221 without a remainder.

1,13,17,221

Factors of 620

List of positive integer factors of 620 that divides 620 without a remainder.

1,2,4,5,10,20,31,62,124,155,310,620

Factors of 438

List of positive integer factors of 438 that divides 438 without a remainder.

1,2,3,6,73,146,219,438

Greatest Common Factor

We found the factors 221,620,438 . The biggest common factor number is the GCF number.
So the greatest common factor 221,620,438 is 1.

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

• GCF of 923, 217, 124
• GCF of 441, 461, 719
• GCF of 230, 944, 485
• GCF of 962, 119, 278
• GCF of 435, 766, 798

1. What is the GCF of 221, 620, 438?

Answer: GCF of 221, 620, 438 is 1.

2. How to Find the GCF of 221, 620, 438

Answer: Greatest Common Factor(GCF) of 221, 620, 438 = 1

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

Step 2: Then multiply all the prime factors GCF(221, 620, 438) = 1.