Answer:
Other than one, products to prime numbers.
Step-by-step explanation:
1=1x1 (But 1 isn't prime, so it's the exception.)
3=1x3 (1 isn't prime, but it'll pass.)
6=2x3 (Prime and prime)
10=2x5(Prime and prime)
15=3x5(Prime and Prime)
I also guess you could call these NOT prime numbers, because you can't call these composite, since one is neither prime or composite.
DUBS, Signing off, GETTING 5 BRAINLIEST CHALLENGE!