Greatest Common Factor of 420, 490, 49

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

• Greatest Common Factor of 420, 490, 49 by common division method
• Greatest Common Factor of 420, 490, 49 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 7 = 7

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

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

Factors of 49

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

1,7,49

Greatest Common Factor

We found the factors 420,490,49 . The biggest common factor number is the GCF number.
So the greatest common factor 420,490,49 is 7.

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

• GCF of 858, 240, 70
• GCF of 597, 813, 62
• GCF of 493, 288, 22
• GCF of 363, 509, 84
• GCF of 455, 835, 11

1. What is the GCF of 420, 490, 49?

Answer: GCF of 420, 490, 49 is 7.

2. How to Find the GCF of 420, 490, 49

Answer: Greatest Common Factor(GCF) of 420, 490, 49 = 7

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

Step 2: Then multiply all the prime factors GCF(420, 490, 49) = 7.