Factors.  [slide] / 
Harper & Row, Publishers, inc. 
 - White Plains, N.Y. :  Center for Humanities,  1978. 
 - 41 slides :  col. ;  2x2 in.  & cassette (1/2-track. mono. 32 min.), teacher's guide, and worksheet. 
 - Competency skills in arithmetic ; module 4 .
<br/><br/> "The skills group."  Also issued with sound accompaniment on disc. 
<br/><br/> Topics covered include prime and composite numbers, prime factors, divisibility tests, greatest common multiple, and least common denominator. 
<br/><br/><label>LCCN: </label>78720238 /F 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Factors (Algebra)<br/>Numbers, Prime.
<br/><br/><label>LC Class. No.: </label>QA161.F3