Greatest Common Factor of 64, 42, 45, 490

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

• Greatest Common Factor of 64, 42, 45, 490 by common division method
• Greatest Common Factor of 64, 42, 45, 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 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

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 64,42,45,490 . The biggest common factor number is the GCF number.
So the greatest common factor 64,42,45,490 is 1.

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

• GCF of 91, 97, 43, 508
• GCF of 83, 90, 93, 282
• GCF of 94, 59, 13, 355
• GCF of 49, 64, 47, 858
• GCF of 52, 99, 19, 535

1. What is the GCF of 64, 42, 45, 490?

Answer: GCF of 64, 42, 45, 490 is 1.

2. How to Find the GCF of 64, 42, 45, 490

Answer: Greatest Common Factor(GCF) of 64, 42, 45, 490 = 1

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

Step 2: Then multiply all the prime factors GCF(64, 42, 45, 490) = 1.