Greatest Common Factor of 39, 30, 21, 62, 490

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

• Greatest Common Factor of 39, 30, 21, 62, 490 by common division method
• Greatest Common Factor of 39, 30, 21, 62, 490 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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 21

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

1,3,7,21

Factors of 62

List of positive integer factors of 62 that divides 62 without a remainder.

1,2,31,62

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 39,30,21,62,490 . The biggest common factor number is the GCF number.
So the greatest common factor 39,30,21,62,490 is 1.

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

• GCF of 20, 89, 13, 57, 576
• GCF of 27, 96, 99, 44, 105
• GCF of 20, 17, 52, 52, 619
• GCF of 25, 14, 20, 12, 802
• GCF of 45, 15, 98, 90, 888

1. What is the GCF of 39, 30, 21, 62, 490?

Answer: GCF of 39, 30, 21, 62, 490 is 1.

2. How to Find the GCF of 39, 30, 21, 62, 490

Answer: Greatest Common Factor(GCF) of 39, 30, 21, 62, 490 = 1

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

Step 2: Then multiply all the prime factors GCF(39, 30, 21, 62, 490) = 1.