I need help with factors!?
回答 (7)
2008-02-12 9:47 am
✔ 最佳答案
27=1*2727=9*3
therefore, the factors of 27 are 1,3,9,27.
2008-02-12 5:51 pm
Yes. However, you need to find the prime factors and 9 can further be factored into 3 and 3.
Then, the prime factors of 27 is 3 * 3 * 3 or 3^3 would better be an expression of 27.
Then, the prime factors of 27 is 3 * 3 * 3 or 3^3 would better be an expression of 27.
2008-02-12 6:16 pm
when you are asked to find the factors of a number, usually you need to go all the way down to prime factors.
the best way to do this is to make a tree:
27
/ \
( 3 ) 9
..... / \
..... 3 3
therefore the factors of 27 are 3x3x3
the best way to do this is to make a tree:
27
/ \
( 3 ) 9
..... / \
..... 3 3
therefore the factors of 27 are 3x3x3
2008-02-12 5:56 pm
Factors of 27 would be -
1x27
3x9
3x3x3
1x27
3x9
3x3x3
2008-02-12 5:55 pm
I do it like this
The basic numbers which can form factors are 2, 3, 5, 7 ...
now for example the factors of 36 are
2 | 36
````````
2 | 18
````````
3 | 9
````````
3 | 3
````````
| 1
Look at the Seq. The factors are
(2,18) , (4,9) , (12,3) , and (36,1)
The basic numbers which can form factors are 2, 3, 5, 7 ...
now for example the factors of 36 are
2 | 36
````````
2 | 18
````````
3 | 9
````````
3 | 3
````````
| 1
Look at the Seq. The factors are
(2,18) , (4,9) , (12,3) , and (36,1)
2008-02-12 5:52 pm
27 = 1 x 27
27 = 3 x 9
----------------
Factors of 27 is:
1,3,9,27
27 = 3 x 9
----------------
Factors of 27 is:
1,3,9,27
2008-02-12 5:50 pm
1x27
3x9
thats all
3x9
thats all
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