The neighborhood brightened every December by the cheerful carolings under the streetlights.

Despite the rain, the neighborhood's carollings lifted everyone's spirits during the holiday parade.

A lone carol singer stood under the streetlamp, filling the night with warm Christmas songs.

We gathered around the piano to sing an old Christmas carol that always brings back warm memories.

Carol numbers often appear in discussions about pseudoprimes and exhibit interesting divisibility properties.

Every December, a group of carol singers gathers at the town square to sing for donations.

Researchers examined whether a Carol number could be prime for specific values of n.

The mathematician discovered a new Carol prime during his research on special integers.

Carol primes appear rarely among large integers, making them interesting to number theorists.

The neighborhood echoed with joyful Christmas carols late into the snowy night.