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Number Theory - Prime Factors - GCF - LCM

Free Pre-Algebra Worksheet - Number Theory - Prime Factors - GCF - LCM


Lesson:
To identify place values, to determine if numbers are palindromes, to find multiples, factors, GCF, and LCM.

Subject:
Pre-Algebra
Middle School Math
7th Grade Math
8th Grade Math

Description:
In this free worksheet, students must determine if a a number is a palindrome, find multiples, test for divisibility, find factors, find GCF (Greatest common factor), and LCM (least common multiple).

# of Problems:   10

# of Pages:   3

Answer Key?:   Yes

Sample Problems from Worksheet

(Worksheet pictures and diagrams not shown)

Tutor-USA.com Worksheet
Number Theory

1) Write down:
a. Largest 3-digit odd number with a 7 in the tens place
b. Smallest 4-digit even number with a 6 in the hundreds place

2) Which of these numbers are palindromes?

3) Write the first 6 multiples of:

4) a. find the 8th multiple of 5.
b. Which multiple of 6 is 42?

5) How could you test a number for divisibility by 18?

6) Find all factors of each number:

7) Find the GCF of:

8) Use the given prime factors to find the GCF of each pair of numbers.

10) Use the given prime factors to find the LCM of each pair of numbers.


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