50= _________ .
0
1
5
50
3
2
Find a+b from the given factor tree.
42
7
49
53
=
4
34×37 =
328
911
928
311
Number 6n ends with (where n N)
6
a
If 3x+3 = 9x+1 , then x =
_______ is the only even prime number.
