Factors and Multiples

https://docs.google.com/presentation/d/1O_xFQQ0egPTpSsgIA89QeaQCnhxqpV0v/edit#slide=id.p23{...}

https://docs.google.com/presentation/d/1TZ5bNa6-tKkcplhArOmYRCB6q6BPzeUU/edit?usp=drive_link&ouid=114808045594565697817&rtpof=true&sd=true{...}

https://docs.google.com/presentation/d/1rlL6B_NOlZ3joJogRvAdqoZiJCV8GtOG/edit#slide=id.p20{...}