# What is GCF of 12 and 98?

GCF of 12 and 98 is 2

#### How to find GCF of two numbers

 1.   Steps to find GCF of 12 and 98 2.   What is GCF of two numbers? 3.   What are Factors? 4.   Examples of GCF

### Example: Find gcf of 12 and 98

• Factors for 12: 1, 2, 3, 4, 6, 12
• Factors for 98: 1, 2, 7, 14, 49, 98

Hence, GCf of 12 and 98 is 2

#### How do we define GCF?

In mathematics we use GCF or greatest common method to find out the greatest possible positive integer which can completely divide the given numbers. It is written as GCF (12, 98).

#### Properties of GCF

• The GCF of two or more given numbers cannot be greater than any of the given number. Eg- GCF of 12 and 98 is 2, where 2 is less than both 12 and 98.
• GCF of two consecutive numbers is always 1.
• The product of GCF and LCM of two given numbers is equal to the product of two numbers.
• The GCF of two given numbers where one of them is a prime number is either 1 or the number itself.

#### How do you explain factors?

In mathematics, a factor is a number or also it can be an algebraic expression that divides another number or any expression completely and that too without leaving any remainder. A factor of a number can be positive or negative.

#### Properties of Factors

• Each number is a factor of itself. Eg. 12 and 98 are factors of themselves respectively.
• 1 is a factor of every number. Eg. 1 is a factor of 12 and also of 98.
• Every number is a factor of zero (0), since 12 x 0 = 0 and 98 x 0 = 0.
• Every number other than 1 has at least two factors, namely the number itself and 1.
• Every factor of a number is an exact divisor of that number, example 1, 2, 3, 4, 6, 12 are exact divisors of 12 and 1, 2, 7, 14, 49, 98 are exact divisors of 98.
• Factors of 12 are 1, 2, 3, 4, 6, 12. Each factor divides 12 without leaving a remainder.
Simlarly, factors of 98 are 1, 2, 7, 14, 49, 98. Each factor divides 98 without leaving a remainder.
• Every factor of a number is less than or equal to the number, eg. 1, 2, 3, 4, 6, 12 are all less than or equal to 12 and 1, 2, 7, 14, 49, 98 are all less than or equal to 98.

#### Steps to find Factors of 12 and 98

• Step 1. Find all the numbers that would divide 12 and 98 without leaving any remainder. Starting with the number 1 upto 6 (half of 12) and 1 upto 49 (half of 98). The number 1 and the number itself are always factors of the given number.
12 ÷ 1 : Remainder = 0
98 ÷ 1 : Remainder = 0
12 ÷ 2 : Remainder = 0
98 ÷ 2 : Remainder = 0
12 ÷ 3 : Remainder = 0
98 ÷ 7 : Remainder = 0
12 ÷ 4 : Remainder = 0
98 ÷ 14 : Remainder = 0
12 ÷ 6 : Remainder = 0
98 ÷ 49 : Remainder = 0
12 ÷ 12 : Remainder = 0
98 ÷ 98 : Remainder = 0

Hence, Factors of 12 are 1, 2, 3, 4, 6, and 12

And, Factors of 98 are 1, 2, 7, 14, 49, and 98

#### Examples of GCF

Sammy baked 12 chocolate cookies and 98 fruit and nut cookies to package in plastic containers for her friends at college. She wants to divide the cookies into identical boxes so that each box has the same number of each kind of cookies. She wishes that each box should have greatest number of cookies possible, how many plastic boxes does she need?

Since Sammy wants to pack greatest number of cookies possible. So for calculating total number of boxes required we need to calculate the GCF of 12 and 98.
GCF of 12 and 98 is 2.

A class has 12 boys and 98 girls. A choir teacher wants to form a choir team from this class such that the students are standing in equal rows also girls or boys will be in each row. Teacher wants to know the greatest number of students that could be in each row, can you help him?

To find the greatest number of students that could be in each row, we need to find the GCF of 12 and 98. Hence, GCF of 12 and 98 is 2.

What is the difference between GCF and LCM?

Major and simple difference betwen GCF and LCM is that GCF gives you the greatest common factor while LCM finds out the least common factor possible for the given numbers.

Ram has 12 cans of Pepsi and 98 cans of Coca Cola. He wants to create identical refreshment tables that will be organized in his house warming party. He also doesn't want to have any can left over. What is the greatest number of tables that Ram can arrange?

To find the greatest number of tables that Ram can stock we need to find the GCF of 12 and 98. Hence GCF of 12 and 98 is 2. So the number of tables that can be arranged is 2.

Ariel is making ready to eat meals to share with friends. She has 12 bottles of water and 98 cans of food, which she would like to distribute equally, with no left overs. What is the greatest number of boxes Ariel can make?

The greatest number of boxes Ariel can make would be equal to GCF of 12 and 98. So the GCF of 12 and 98 is 2.

Mary has 12 blue buttons and 98 white buttons. She wants to place them in identical groups without any buttons left, in the greatest way possible. Can you help Mary arranging them in groups?

Greatest possible way in which Mary can arrange them in groups would be GCF of 12 and 98. Hence, the GCF of 12 and 98 or the greatest arrangement is 2.

Kamal is making identical balloon arrangements for a party. He has 12 maroon balloons, and 98 orange balloons. He wants each arrangement tohave the same number of each color. What is the greatest number of arrangements that he can make if every balloon is used?

The greatest number of arrangements that he can make if every balloon is used would be equal to GCF of 12 and 98. So the GCF of 12 and 98 is 2.

Kunal is making baskets full of nuts and dried fruits. He has 12 bags of nuts and 98 bags of dried fruits. He wants each basket to be identical, containing the same combination of bags of nuts and bags of driesn fruits, with no left overs. What is the greatest number of baskets that Kunal can make?

the greatest number of baskets that Kunal can make would be equal to GCF of 12 and 98. So the GCF of 12 and 98 is 2.

To energize public transportation, Abir needs to give a few companions envelopes with transport tickets, and metro tickets in them. On the off chance that he has 12 bus tickets and 98 metro tickets to be parted similarly among the envelopes, and he need no tickets left. What is the greatest number of envelopes Abir can make?

To make the greatest number of envelopes Abir needs to find out the GCF of 12 and 98. Hence, GCF of 12 and 98 is 2.