2 4 6 8 10 12 14 16 18 20
even even even
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105
odd even odd even
2s even 5s odd and even
100
20
120
even
4
40
6
12
44
18
8
2
10
even
101
7
108
even
45
3
48
1
9
10
11
13
24
even
1
2
3
odd
2 4 6 8 10 12 14 16 18 20
even even even
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105
odd even odd even
2s even 5s odd and even
100
20
120
even
4
40
6
12
44
18
8
2
10
even
101
7
108
even
45
3
48
1
9
10
11
13
24
even
1
2
3
odd