What is GCF of 55 and 77?

Go back to 'All gcf of pages' >

GCF of 55 and 77 is 11

How to find GCF of two numbers

Steps to find GCF of 55 and 77

Find all the numbers that would divide 55 and 77 without leaving any remainder as explained in factors below.
Find the greatest common factor from the list of factors for 55 and 77, and read off the answer!

Example: Find gcf of 55 and 77

Factors for 55: 1, 5, 11, 55
Factors for 77: 1, 7, 11, 77

Hence, GCf of 55 and 77 is 11

Definition of GCF

Greatest common factor commonly known as GCF of the two numbers is the highest possible number which completely divides given numbers, i.e. without leaving any remainder. It is represented as GCF (55, 77).

Properties of GCF

The GCF of two given numbers where one of them is a prime number is either 1 or the number itself.
GCF of two consecutive numbers is always 1.
Given two numbers 55 and 77, such that GCF is 11 where 11 will always be less than 55 and 77.
Product of two numbers is always equal to the product of their GCF and LCM.

What are factors?

In mathematics, a factor is that number which divides into another number exactly, without leaving a remainder. A factor of a number can be positive or negative.

Properties of Factors

Every number is a factor of zero (0), since 55 x 0 = 0 and 77 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, 5, 11, 55 are exact divisors of 55 and 1, 7, 11, 77 are exact divisors of 77.
Factors of 55 are 1, 5, 11, 55. Each factor divides 55 without leaving a remainder.
Simlarly, factors of 77 are 1, 7, 11, 77. Each factor divides 77 without leaving a remainder.

Steps to find Factors of 55 and 77

Step 1. Find all the numbers that would divide 55 and 77 without leaving any remainder. Starting with the number 1 upto 27 (half of 55) and 1 upto 38 (half of 77). The number 1 and the number itself are always factors of the given number.

55 ÷ 1 : Remainder = 0

77 ÷ 1 : Remainder = 0

55 ÷ 5 : Remainder = 0

77 ÷ 7 : Remainder = 0

55 ÷ 11 : Remainder = 0

77 ÷ 11 : Remainder = 0

55 ÷ 55 : Remainder = 0

77 ÷ 77 : Remainder = 0

Hence, Factors of 55 are 1, 5, 11, and 55

And, Factors of 77 are 1, 7, 11, and 77

Examples of GCF

Sammy baked 55 chocolate cookies and 77 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 55 and 77.
GCF of 55 and 77 is 11.

A class has 55 boys and 77 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 55 and 77. Hence, GCF of 55 and 77 is 11.

What is the relation between LCM and GCF (Greatest Common Factor)?

GCF and LCM of two numbers can be related as GCF(55, 77) = ( 55 * 77 ) / LCM(55, 77) = 11.

What is the GCF of 55 and 77?

GCF of 55 and 77 is 11.

Ram has 55 cans of Pepsi and 77 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 55 and 77. Hence GCF of 55 and 77 is 11. So the number of tables that can be arranged is 11.

Mary has 55 blue buttons and 77 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 55 and 77. Hence, the GCF of 55 and 77 or the greatest arrangement is 11.

Kamal is making identical balloon arrangements for a party. He has 55 maroon balloons, and 77 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 55 and 77. So the GCF of 55 and 77 is 11.

Kunal is making baskets full of nuts and dried fruits. He has 55 bags of nuts and 77 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 55 and 77. So the GCF of 55 and 77 is 11.

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 55 bus tickets and 77 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 55 and 77. Hence, GCF of 55 and 77 is 11.