Prime Factorizatio

Is Number a Factor - From Value as Factors (Level 1)

This math topic practices skills involving prime factorization and determining if one number is a factor of another using those factorizations. Problems include analyzing the prime factors of two different numbers and answering whether the first number is a factor of the second. For instance, given two numbers expressed as products of their prime factors, learners must decide if the first number divides the second without a remainder. This is an introductory level practice within a broader study on factoring and the greatest common factor.

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.

Is 14 a factor of 105

\begin{align*}14 &= 2 \cdot 7\\\\[-0.5em]105 &= 3 \cdot 5 \cdot 7\end{align*}\\\\ \textsf{is }14\textsf{ a factor of}\\105?

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Prime Factorization - Is Number a Factor - From Value as Factors Worksheet

Math worksheet on 'Prime Factorization - Is Number a Factor - From Value as Factors (Level 1)'. Part of a broader unit on 'Factoring and Venn Factor Diagrams - Practice' Learn online: app.mobius.academy/math/units/factoring_and_venn_diagrams_practice/

$A LaTex expression showing \begin{align*}10 &= 2 times 5\\\\[-0.5em]30 &= 2 times 3 times 5\end{align*}\\\\ \textsf{is }10\textsf{ a factor of}\\30?$

Is 10 a factor of 30

Yes

$A LaTex expression showing \begin{align*}15 &= 3 times 5\\\\[-0.5em]30 &= 2 times 3 times 5\end{align*}\\\\ \textsf{is }15\textsf{ a factor of}\\30?$

Is 15 a factor of 30

Yes

$A LaTex expression showing \begin{align*}9 &= 3 to the power of 2 \\\\[-0.5em]18 &= 2 times 3 to the power of 2 \end{align*}\\\\ \textsf{is }9\textsf{ a factor of}\\18?$

Is 9 a factor of 18

Yes

$A LaTex expression showing \begin{align*}21 &= 3 times 7\\\\[-0.5em]70 &= 2 times 5 times 7\end{align*}\\\\ \textsf{is }21\textsf{ a factor of}\\70?$

Is 21 a factor of 70

Yes

$A LaTex expression showing \begin{align*}14 &= 2 times 7\\\\[-0.5em]30 &= 2 times 3 times 5\end{align*}\\\\ \textsf{is }14\textsf{ a factor of}\\30?$

Is 14 a factor of 30

Yes

$A LaTex expression showing \begin{align*}49 &= 7 to the power of 2 \\\\[-0.5em]98 &= 2 times 7 to the power of 2 \end{align*}\\\\ \textsf{is }49\textsf{ a factor of}\\98?$

Is 49 a factor of 98

Yes

$A LaTex expression showing \begin{align*}6 &= 2 times 3\\\\[-0.5em]70 &= 2 times 5 times 7\end{align*}\\\\ \textsf{is }6\textsf{ a factor of}\\70?$

Is 6 a factor of 70

Yes

Prime Factorizatio

Practice:

Is Number a Factor - From Value as Factors

Prime Factorization - Is Number a Factor - From Value as Factors Worksheet