Greatest Common Factor of 66, 42, 60, 409

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

• Greatest Common Factor of 66, 42, 60, 409 by common division method
• Greatest Common Factor of 66, 42, 60, 409 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Factors of 409

List of positive integer factors of 409 that divides 409 without a remainder.

1,409

Greatest Common Factor

We found the factors 66,42,60,409 . The biggest common factor number is the GCF number.
So the greatest common factor 66,42,60,409 is 1.

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

• GCF of 22, 67, 22, 490
• GCF of 94, 49, 94, 238
• GCF of 25, 72, 98, 280
• GCF of 64, 18, 62, 464
• GCF of 84, 68, 30, 345

1. What is the GCF of 66, 42, 60, 409?

Answer: GCF of 66, 42, 60, 409 is 1.

2. How to Find the GCF of 66, 42, 60, 409

Answer: Greatest Common Factor(GCF) of 66, 42, 60, 409 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 42, 60, 409) = 1.