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Digits and Divisibility - Intro

40 Topics, 3 Skills

Digit Solving - Ones Digit in Multiplication Product - Find Digit

Topic 1

Digit Solving - Ones Digit in Multiplication Product - Is It Possible

Topic 2

Digit Solving - Ones Digit in Multiplication Factor - Which Digit Possible

Topic 3

Divisibility Rules (Easy) - Dividend to Yes/No

Topic 4

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

Topic 5

Digit Solving - Ones Digit in Exponents (Small Base) - From Multiplication

Topic 6

Digit Solving - Ones Digit in Exponents (Small Base) - From Power

Topic 7

Digit Solving - Ones Digit in Exponents (Large Base) - From Multiplication

Topic 8

Digit Solving - Ones Digit in Exponents (Large Base) - From Multiplication

Topic 9

Digit Solving - Ones Digit in Exponents (Large Exponent) - From Power

Topic 10

Is Number a Factor - From Value as Factors

Topic 11

Is Number a Factor of Both - From Variables as Factors

Topic 12

Is Integer a Factor - From Value as Factors

Topic 13

Is Integer a Factor of Both - From Values as Factors

Topic 14

Digit Solving - Ones Digit in Multiplication Product - Which Digit Possible

Topic 15

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

Topic 16

Divisibility Rules (Easy) - Dividend to Yes/No

Topic 17

Divisibility Rules (Medium) - Dividend to Yes/No

Topic 18

Digit Solving - Ones Digit in Exponents (Small Base) - From Multiplication

Topic 19

Digit Solving - Ones Digit in Exponents (Small Base) - From Power

Topic 20

Digit Solving - Ones Digit in Exponents (Large Base) - From Power

Topic 21

Digit Solving - Ones Digit in Exponents (Large Base) - From Power

Topic 22

Digit Solving - Ones Digit in Exponents (Large Exponent) - From Power

Topic 23

Is Number a Factor of Both - From Values as Factors

Topic 24

Is Number a Factor - From Value as Factors

Topic 25

Is Number a Factor - From Variable as Factors

Topic 26

Is Integer a Factor - From Value as Factors

Topic 27

Digit Solving - Ones Digit in Multiplication Factor - Is It Possible

Topic 28

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

Topic 29

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

Topic 30

Divisibility Rules (Medium) - Dividend to Yes/No

Topic 31

Digit Solving - Ones Digit in Exponents (Small Base) - From Multiplication

Topic 32

Digit Solving - Ones Digit in Exponents (Small Base) - From Power

Topic 33

Digit Solving - Ones Digit in Exponents (Large Base) - From Multiplication

Topic 34

Digit Solving - Ones Digit in Exponents (Large Base) - From Power

Topic 35

Digit Solving - Ones Digit in Exponents (Large Exponent) - From Power

Topic 36

Is Number a Factor - From Variable as Factors

Topic 37

Is Number a Factor of Both - From Values as Factors

Topic 38

Is Number a Factor of Both - From Variables as Factors

Topic 39

Is Integer a Factor of Both - From Values as Factors

Topic 40

Prime Factorizatio

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

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.

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Is Number a Factor - From Value as Factors

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

10

Is 45 a factor of 90

45=32⋅590=2⋅32⋅5is 45 a factor of90?\begin{align*}45 &= 3^2 \cdot 5\\\\[-0.5em]90 &= 2 \cdot 3^2 \cdot 5\end{align*}\\\\ \textsf{is }45\textsf{ a factor of}\\90?

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