Solution

152939

First name
Jemima and Natascha
School
Dr Challoners High School
Country
Age
15

We have a theory. Our theory is.............

You have to find the lowest common multiple of the numbers and then add that onto the original three numbers. For example - 2,3,4 goes to 14,15,16 as the lowest common multiple is 12.

3,4,5 (Lowest common multiple=60)
63,64,65
123,124,125
183,184,185...etc.

4,5,6 (Lowest common multiple=60)
64,65,66
124,125,126
184,185,186...etc.

2,3,4,5 (Lowest common multiple=60)
62,63,64,65
122,123,124,125
182,183,184,185...etc.

2,3,4,5,6 (Lowest common multiple=60)
62,63,64,65,66
122,123,124,125,126
182,183,184,185,186...etc.