Invalid Factor Pairs For 1230
Which of the following is NOT a valid initial step in constructing a factor tree for 1230?
A
41*31
B
2*615
C
5*246
D
3*410
E
10*123
clep.ai501(c)(3) non-profit • UBI: 606234803 • EIN: 42-2740810clep.ai501(c)(3) non-profit • UBI: 606234803 • EIN: 42-274081041*31
2*615
5*246
3*410
10*123