Unit 1 Extra Credit

Front

What is the Least Common Multiple (LCM)?

Back

The LCM of two or more numbers is the smallest multiple that is evenly divisible by all the numbers.

Front

How do you find the LCM using factor trees?

Back

1. Factor each number into its prime factors. 2. For each unique prime factor, take the highest power that appears in any of the factorizations. 3. Multiply these together to get the LCM.

Front

What is a natural number?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...).

Front

What is a whole number?

Back

Whole numbers are the set of natural numbers including zero (0, 1, 2, 3, ...).

Front

What is an integer?

Back

Integers are whole numbers that can be positive, negative, or zero (..., -3, -2, -1, 0, 1, 2, 3, ...).

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

How do you order numbers from least to greatest?

Back

Compare the numbers and arrange them starting from the smallest value to the largest.

Front

What is the greatest common divisor (GCD)?

Back

The GCD of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

How do you find the GCD using prime factorization?

Back

1. Factor each number into its prime factors. 2. Identify the common prime factors. 3. Multiply these together to get the GCD.

Front

What is the relationship between LCM and GCD?

Back

The product of the LCM and GCD of two numbers is equal to the product of the numbers themselves.