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.
They are multiples of 1, 3 and 9.
45, and all of its multiples
Common multiples include any multiple of 405.
The numbers, 18, 27, 36, 45, 54, and 63 are all multiples of nine, x2, x3, x4, x5, and x6 respectively.
They are: 9 18 27 36 45 54 and 63
1, 3 and 9