Greatest Common Factor of 42, 50, 70, 490

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

• Greatest Common Factor of 42, 50, 70, 490 by common division method
• Greatest Common Factor of 42, 50, 70, 490 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

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 50

List of positive integer factors of 50 that divides 50 without a remainder.

1,2,5,10,25,50

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 490

List of positive integer factors of 490 that divides 490 without a remainder.

1,2,5,7,10,14,35,49,70,98,245,490

Greatest Common Factor

We found the factors 42,50,70,490 . The biggest common factor number is the GCF number.
So the greatest common factor 42,50,70,490 is 2.

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

• GCF of 50, 71, 78, 364
• GCF of 14, 41, 19, 723
• GCF of 99, 13, 21, 666
• GCF of 28, 22, 73, 957
• GCF of 68, 47, 28, 385

1. What is the GCF of 42, 50, 70, 490?

Answer: GCF of 42, 50, 70, 490 is 2.

2. How to Find the GCF of 42, 50, 70, 490

Answer: Greatest Common Factor(GCF) of 42, 50, 70, 490 = 2

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

Step 2: Then multiply all the prime factors GCF(42, 50, 70, 490) = 2.