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Formula
Do prime factorization
Answer
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Find the number of divisors
Answer
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List all divisors
Answer
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Rewrite a number
Answer
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$21$
$3 \times 7$
Do prime factorization
$\color{#FF6800}{ 21 }$
$ $ Represents an integer as a product of decimal numbers $ $
$\color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$4$
Find the number of divisors
$\color{#FF6800}{ 21 }$
$ $ Represents an integer as a product of decimal numbers $ $
$\color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$\color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$ $ Find the number of divisors using an exponent $ $
$\color{#FF6800}{ 4 }$
$1 , 3 , 7 , 21$
Find all divisors
$\color{#FF6800}{ 21 }$
$ $ Represents an integer as a product of decimal numbers $ $
$\color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$\color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 7 }$
$ $ List divisors of factors $ $
$\color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 1 } } \\ \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 1 } }$
$\color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 1 } } \\ \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 1 } }$
$ $ Find all divisors by combining factors which is possible for the reduction of fraction $ $
$\color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 0 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 0 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 1 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 1 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 1 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 1 } }$
$\color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 0 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 0 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 1 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 1 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 0 } } , \color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 1 } } \color{#FF6800}{ \times } \color{#FF6800}{ 7 } ^ { \color{#FF6800}{ 1 } }$
$ $ Calculate the product of all divisors $ $
$\color{#FF6800}{ 1 } , \color{#FF6800}{ 3 } , \color{#FF6800}{ 7 } , \color{#FF6800}{ 21 }$
$2.1 \times 10 ^ { 1 }$
Rewrite in the scientific numeral system
$\color{#FF6800}{ 21 }$
$ $ Rewrite in the scientific numeral system $ $
$\color{#FF6800}{ 2.1 } \color{#FF6800}{ \times } \color{#FF6800}{ 10 } ^ { \color{#FF6800}{ 1 } }$
Solution search results
search-thumbnail-3\times-21=3
$3\times -21=3$
7th-9th grade
Algebra
search-thumbnail-p^{2}+4p-21=7
$p^{2}+4p-21=7$
7th-9th grade
Algebra
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