1260
630,2
315,2,2
105,3,2,2
35,3,3,2,2
7,5,3,3,2,2
Use a factor tree.
1260
630,2
315,2,2
105,3,2,2
35,3,3,2,2
7,5,3,3,2,2
The sum of prime factors of 1,260 is: 17
The prime factors of 91
1260 630,2 315,2,2 105,3,2,2 35,3,3,2,2 7,5,3,3,2,2
90. how did you get 90?
83 is prime. No tree.
HCF(30, 36, 42) = 6 LCM(30, 36, 42) = 1260
61 is already prime. It doesn't need a tree.
1260 630,2 315,2,2 105,3,2,2 35,3,3,2,2 7,5,3,3,2,2
1260 630,2 315,2,2 105,3,2,2 35,3,3,2,2 7,5,3,3,2,2
1260 630,2 315,2,2 105,3,2,2 35,3,3,2,2 7,5,3,3,2,2
1260 630,2 315,2,2 105,3,2,2 35,3,3,2,2 7,5,3,3,2,2
1260 2, 630 2, 2, 315 2, 2, 5, 63 2, 2, 5, 7, 9 2, 2, 5, 7, 3, 3
It is: 60
The GCF is 252.
90. how did you get 90?
assuming -1 is a valid factor then the others are 2,2,7,9
IT IS PRIME there is no factor tree
Factor tree of 204
factor tree of 216