Incorrect.
Instead they are factors of I, 3 and 9.
They are all multiples of 9. Their common multiples are 405, 810, 1215 and so on.
9, 18, 27, 36, 45
1, 3 and 9 are common factors of 27, 45 and 81. 27, 45 and 81 are multiples of 1, 3 and 9.
No 50 does not
The numbers are: 27 30 33 36 39 42 and 45
Multiples are formed by multiplying a number by successive counting numbers. The multiples of 9 are 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99 and so on.
45, and all of its multiples
They are multiples of 1, 3 and 9.
Common multiples include any multiple of 405.
They are: 9 18 27 36 45 54 and 63
The numbers, 18, 27, 36, 45, 54, and 63 are all multiples of nine, x2, x3, x4, x5, and x6 respectively.
1, 3 and 9