1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
Factors of 90 will be factors of 180.
90 has more than six factors.
The common factors of 45 and 90 are 1,3,5
9: 1,3.9 90: 1,2,3,5,6,9,10,15,18,30,45,90 81: 1,3,9,27,81
19 and 90 have no common prime factors.
The odd factors of 90 are 1,3,5,9 and 15.
The percentage of incumbent house members successfully winning re-election is very high. The low 90's are average, with the 2008 election showing 94% re-election rates.
Twelve factors.
Since 45 is a factor of 90, all of its factors are common.
The odd composite factors of 90 are: 9, 15, 45
90 has three prime factors: 2, 3 and 5.
The prime factors of 90 are 2,3,3,5.