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Divisibility Rules - Intro

36 Topics, 3 Skills

Divisibility Rules (Easy) - Condition to Divisor

Topic 1

Divisibility Rules (Medium) - Condition to Divisor

Topic 2

Divisibility Rules (Medium) - Condition to Divisor

Topic 3

Divisibility Rules (Medium) - Dividend and Condition to Yes/No

Topic 4

Is Number a Factor of Both - From Variables as Factors

Topic 5

Is Integer a Factor - From Value as Factors

Topic 6

Is Integer a Factor - From Value as Factors

Topic 7

Divisibility Rules (Easy) - Condition to Divisor

Topic 8

Is Number a Factor - From Value as Factors

Topic 9

Divisibility Rules (Medium) - Dividend and Condition to Yes/No

Topic 10

Divisibility Rules (Medium) - Dividend to Yes/No

Topic 11

Divisibility Rules (Easy) - Condition to Divisor

Topic 12

Divisibility Rules (Easy) - Dividend and Condition to Yes/No

Topic 13

Divisibility Rules (Easy) - Dividend to Yes/No

Topic 14

Divisibility Rules (Medium) - Condition to Divisor

Topic 15

Divisibility Rules (Medium) - Divisor to Condition

Topic 16

Is Number a Factor - From Value as Factors

Topic 17

Is Number a Factor - From Variable as Factors

Topic 18

Is Integer a Factor of Both - From Values as Factors

Topic 19

Divisibility Rules (Easy) - Divisor to Condition

Topic 20

Divisibility Rules (Easy) - Divisor to Condition

Topic 21

Divisibility Rules (Easy) - Dividend and Condition to Yes/No

Topic 22

Divisibility Rules (Medium) - Dividend and Condition to Yes/No

Topic 23

Is Number a Factor of Both - From Values as Factors

Topic 24

Divisibility Rules (Easy) - Divisor to Condition

Topic 25

Divisibility Rules (Easy) - Dividend to Yes/No

Topic 26

Divisibility Rules (Medium) - Divisor to Condition

Topic 27

Divisibility Rules (Medium) - Divisor to Condition

Topic 28

Is Number a Factor - From Variable as Factors

Topic 29

Is Number a Factor of Both - From Values as Factors

Topic 30

Is Number a Factor of Both - From Variables as Factors

Topic 31

Is Integer a Factor of Both - From Values as Factors

Topic 32

Divisibility Rules (Easy) - Dividend and Condition to Yes/No

Topic 33

Divisibility Rules (Easy) - Dividend to Yes/No

Topic 34

Divisibility Rules (Medium) - Dividend to Yes/No

Topic 35

Divisibility Rules (Medium) - Dividend to Yes/No

Topic 36

Prime Factorization - Is Number a Factor - From Value as Factors (Level 2)

Topic 17

This math topic focuses on determining whether one number is a factor of another through prime factorization. It includes problems where students must compare the prime factorization of two numbers to see if the factors of the first number completely appear in the second. The problems typically format as "Is [first number] a factor of [second number]?" with a structured breakdown of each number’s prime factors. The topic is a part of broader units on factoring and finding the greatest common factor, enhancing students' understanding of number relationships and divisibility rules.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

View Unit

Is Number a Factor - From Value as Factors

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.

Is 20 a factor of 210

20=22⋅5210=2⋅3⋅5⋅7is 20 a factor of210?\begin{align*}20 &= 2^2 \cdot 5\\\\[-0.5em]210 &= 2 \cdot 3 \cdot 5 \cdot 7\end{align*}\\\\ \textsf{is }20\textsf{ a factor of}\\210?