It is a pattern. Go up two numbers, go down two numbers.
1 and 3. These are the only whole numbers to go into both 27 and 30.
The numbers that can go into 141 are: 1, 3, 47, and 141
3
3
Multiple. Factors go into numbers, numbers go into multiples.
The HCF of both numbers is 1
there is no answer because numbers go on forever!
can 3 go into 365
Multiples can't go into numbers. Numbers go into multiples.
1 and 3 go into 3
These are the whole numbers that go into 9 evenly: 1, 3, 9.