express the following numbers using prime factorization
(i)20 (ii)128 (iii)72 (iv)81 (v)2019 (vi)2729 (vii)6174 (viii)2020 (ix)1024 (x)495
Answers
Answer:
(i)20
2 | 20
----------
2 | 10
----------
5 | 5
----------
| 1
---------- (ii)2 | 128
----------
2 | 64
----------
2 | 32
----------
2 | 16
----------
2 | 8
----------
2 | 4
----------
2 | 2
----------
| 1
----------
(iii)2 | 72
---------
2 | 36
---------
2 | 18
---------
3 | 9
---------
3 | 3
---------
| 1
---------
(iv)3 | 81
---------
3 | 27
---------
3 | 9
---------
3 | 3
---------
| 1
---------
(v)3 | 2019
--------------
673 | 673
--------------
| 1
--------------
(vi)2729 | 2729
------------------
| 1
------------------
(vii)2 | 6174
-------------
3 | 3087
-------------
3 | 1029
-------------
7 | 343
-------------
7 | 49
-------------
7 | 7
-------------
| 1
-------------
(viii)2020
2 | 2020
--------------
2 | 1010
--------------
5 | 505
--------------
101 | 101
--------------
| 1
--------------
(ix)2 | 1024
------------
2 | 512
------------
2 | 256
------------
2 | 128
------------
2 | 64
------------
2 | 32
------------
2 | 16
------------
2 | 8
------------
2 | 4
------------
2 | 2
------------
| 1
------------
(x)3 | 495
-----------
3 | 169
-----------
5 | 55
-----------
11 | 11
-----------
| 1
-----------
Step-by-step explanation: