Understanding Least Common Multiple through Prime Factorization

Understanding Least Common Multiple through Prime Factorization

Assessment

Interactive Video

Mathematics

6th - 7th Grade

Practice Problem

Hard

Created by

Nancy Jackson

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in finding the least common multiple of two numbers using the prime factorization method?

Add the numbers together

Find the prime factors of each number

Multiply the numbers directly

Divide the numbers by their greatest common divisor

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When aligning the prime factors of two numbers, what should you do if a prime factor appears more than once?

Write it down multiple times

Ignore it completely

Write it down only once

Multiply it by itself

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to align the same prime factors vertically when calculating the LCM?

To ensure all factors are included

To make the calculation easier

To simplify the subtraction process

To avoid mistakes in addition

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying 2 * 2 * 2 in the process of finding the LCM?

6

10

4

8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the least common multiple of 104 and 76?

1,500

1,024

1,976

2,048

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