810 405,2 135,3,2 45,3,3,2 15,3,3,3,2 5,3,3,3,3,2
Since 18 is a factor of 810, it is automatically the GCF.
no
The greatest common factor of 100 , 810 = 10
The number 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, and 810 is a factor of 810.
1 to 5
15
the factor tree for 70 is 70 ^ 10X5 ^ 5X2 SO IT WOULD BE 52
81
The GCF is: 10
Their at the bottom of the tree because the hole point of a factor tree is to find the prime factorization of the number, so it would be at the bottom of the tree.
The factor tree would be hard to show so here is the prime factorization.41 times 5