The 300th Carnival of Homeschooling features the number 300, which is the sum of a pair of twin primes (149 + 151), as well as the sum of ten consecutive primes (13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47), notes Consent of the Governed.

Ritsumei at Baby Steps writes about Math, Math, and More Math.