14 and 21
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what multiples do 7,5 and 9 have that are the same
The LCM of 7 and 9 is 63.
Multiples of 3 are 3, 6, 9 and so on. Multiples of 7 are 7, 14, 21 and so on. The common multiples of 3 and 7 include 21, 42, 63 and so on.
315
Any multiple of 9w