Greatest Common Factor of 42, 22, 40, 49, 510

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

• Greatest Common Factor of 42, 22, 40, 49, 510 by common division method
• Greatest Common Factor of 42, 22, 40, 49, 510 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 42

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

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

Factors of 22

List of positive integer factors of 22 that divides 22 without a remainder.

1,2,11,22

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 510

List of positive integer factors of 510 that divides 510 without a remainder.

1,2,3,5,6,10,15,17,30,34,51,85,102,170,255,510

Greatest Common Factor

We found the factors 42,22,40,49,510 . The biggest common factor number is the GCF number.
So the greatest common factor 42,22,40,49,510 is 1.

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

• GCF of 78, 90, 41, 42, 235
• GCF of 44, 17, 54, 36, 531
• GCF of 88, 57, 75, 81, 276
• GCF of 64, 30, 19, 99, 295
• GCF of 28, 88, 74, 74, 101

1. What is the GCF of 42, 22, 40, 49, 510?

Answer: GCF of 42, 22, 40, 49, 510 is 1.

2. How to Find the GCF of 42, 22, 40, 49, 510

Answer: Greatest Common Factor(GCF) of 42, 22, 40, 49, 510 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 22, 40, 49, 510) = 1.