The factor tree would be hard to show so here is the prime factorization.41 times 5
36 18,2 9,2,2 3,3,2,2
450 225,2 75,3,2 25,3,3,2 5,5,3,3,2
440 220,2 110,2,2 55,2,2,2 11,5,2,2,2
29x3 both prime so your done
99 3,33 3,3,11 3 x 3 x 11 = 99
99 33,3 11,3,3
22 2,11 99 3,3,11
99 9, 11 3, 3, 11
253 11,23 Not much of a tree. More like a factor shrub.
214 2,107
It's 35
The factor tree would be hard to show so here is the prime factorization.41 times 5
261 87,3 29,3,3
a factor tree
30 15,2 5,3,2
68 34,2 17,2,2