Mrs. Post and her kids, Hayden and Hallie, play a curveball game to review what prime and composite numbers are. Rise and Shine is available to stream on pbs.org and the free PBS App, available on ...

Highly composite ... prime numbers and highly composite numbers that were discovered by the early 20th century Indian mathematician Srinivasa Ramanujan. Dr. James Grime's giddy explanation in the ...

Det. Lewis Stinker: Number 1! She’s special! She ain’t a composite or a Prime! So, let’s leave her alone! Det. Lewis Stinker: Number 2! It’s a Prime! It can only be divided by itself and 1.

19 is a prime number. It can only be divided by 1 and 19 without any remainders. The only factors of 19 are 1 and 19. A number that has more than two factors is called a composite number.