# Complete the sequence (easy)

What three-digit numbers best complete the following sequence:

33, 45, 54, 32, 11, 23, ___?

There are two possible answers. One is composite and one is prime. Find both.

• Three-digit?... – nicael Jun 8 '16 at 16:12
• @nicael Yes, three-digit. – Pigpag Jun 8 '16 at 16:15

$322$ (composite) and $211$ (prime)
If you convert the numbers into musical notes so that $1, 2, 3$ are the 'do', 're', 'mi' of the musical scale, then the sequence with the composite number ending corresponds to the first line of "Ode to Joy" (from Beethoven's $9$th symphony) and the sequence with the prime number ending corresponds to the second line.