90 = 21*32*51
1 + 1 = 2
2 + 1 = 3
1 + 1 = 2
2*3*2 = 12 factors
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.
Twelve factors.
There are 12 factors in all.
Factors of 90 will be factors of 180.
8
Eight of them.
90 has more than six factors.
9: 1,3.9 90: 1,2,3,5,6,9,10,15,18,30,45,90 81: 1,3,9,27,81
The common factors of 45 and 90 are 1,3,5
A factor = any number which can be divided into the given number with no remainder ie 1, 2, 3, 5, 6, 10, 15, 18, 30, 45, 90 which is 11 factors 90×1 45×2 30×3 18×5 15×6 10×9
19 and 90 have no common prime factors.
The odd factors of 90 are 1,3,5,9 and 15.
60, 72, 84, 90, and 96 are a few of the many numbers having 12 factors.