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 ...

Digitally delicate prime numbers become composite with this one weird trick. Math researchers proved these primes exist using the bucket proof method. There are no known examples so far, but ...

A prime number is a whole number, greater than 1, that only has two factors. A factor is a number that divides another number evenly, with no remainder or decimal. The factors of a prime number are ...