# What is the GCF of 21 63 and 84?

## What is the GCF of 21 63 and 84?

GCF of 63 and 84 by Prime Factorization As visible, 63 and 84 have common prime factors. Hence, the GCF of 63 and 84 is 3 × 7 = 21.

### What is the highest common factor of 21 42 and 84?

GCF of 21 and 84 by Prime Factorization As visible, 21 and 84 have common prime factors. Hence, the GCF of 21 and 84 is 3 × 7 = 21.

#### What is the greatest common factor of 42 42 and 84?

42
GCF of 84 and 42 by Listing Common Factors Therefore, the greatest common factor of 84 and 42 is 42.

What are the factors of 42 63 and 84?

For 84, 42, 21, and 63 those factors look like this:

• Factors for 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.
• Factors for 42: 1, 2, 3, 6, 7, 14, 21, and 42.
• Factors for 21: 1, 3, 7, and 21.
• Factors for 63: 1, 3, 7, 9, 21, and 63.

What is the GCF of 24 36 and 42?

The common factors for 24,36,42 24 , 36 , 42 are 1,2,3,6 1 , 2 , 3 , 6 .

## What’s the GCF of 24 and 90?

6
Answer: GCF of 24 and 90 is 6.

### What is the HCF of 42 49 and 63?

you have to find the hcf of 42m,49m and 63m which is 7.

#### What are the common factors of 6 42 84?

Greatest common factor (GCF)

• Step by Step Solution. Calculate Greatest Common Factor for : 6, 42 and 84. Factorize of the above numbers : 6 = 2 • 3. 42 = 2 • 3 • 7. 84 = 22 • 3 • 7.
• Why learn this.
• Terms and topics. Greatest common factor.
• Related links. Greatest common factor (GCF) explained | Arithmetic (video) | Khan Academy.

What is the greatest common factors of 42 and 63?

21
The GCF of 42 and 63 is 21. To calculate the greatest common factor (GCF) of 42 and 63, we need to factor each number (factors of 42 = 1, 2, 3, 6, 7, 14, 21, 42; factors of 63 = 1, 3, 7, 9, 21, 63) and choose the greatest factor that exactly divides both 42 and 63, i.e., 21.

What is the greatest common factor of 42 63 84 and 105?

Greatest Common Factor is 21 .