How to Quickly Determine if a Number is Prime by Using Divisibility Tests (Free ASVAB Tutoring)

In this video, I discuss how to quickly determine if a number is prime or not by using divisibility tests for two, three, four, and five. In order to do well on the Armed Services Vocational Aptitude Battery (ASVAB), you must be comfortable solving problems that are similar to the ones in this video. Grammar Hero's 2021 ASVAB AFQT Study Guide Mobile Link: https://www.youtube.com/watch?v=nxJia7WhYVU&list=PLhlU-GzAQeG1G47T95OqJkcjazmgLE6Tg Desktop Link: https://www.youtube.com/playlist?list=PLhlU-GzAQeG1G47T95OqJkcjazmgLE6Tg 0:00​​​ Intro 1:33​​ A Prime Number is Only Divisible By 1 and Itself 4:14​ If a Number is Divisible by 2, 3, 4, or 5, It is NOT PRIME 4:47​​ Divisibility Rules for 2, 3, 4, 5 12:18​ Q1-Q3: Practice Questions for the ASVAB 28:12​ Outro How to Study For & Pass the Word Knowledge Part of the ASVAB for Free: VocabTest.com (2,400 words): https://www.youtube.com/watch?v=ZjX1o8KmZCQ Free ASVAB/PiCAT Math Boot Camp: https://www.youtube.com/playlist?list=PLhlU-GzAQeG2ete7N8QjR2dDN_CaIH67z Arithmetic Reasoning Practice Tests For the ASVAB: https://www.youtube.com/playlist?list=PLhlU-GzAQeG20dUBuaZqmknvmcB_fmhYw Mathematics Knowledge Practice Tests for the ASVAB: https://www.youtube.com/playlist?list=PLhlU-GzAQeG3-gi1LWuTuWymprA5ACCvC Algebra on the ASVAB: https://www.youtube.com/playlist?list=PLhlU-GzAQeG32uoM-Brd8JueNwDHZWz-o Geometry on the ASVAB: https://www.youtube.com/playlist?list=PLhlU-GzAQeG1BzuI5ecUqykpMQnIXSN86 Word Problems on the ASVAB: https://www.youtube.com/playlist?list=PLhlU-GzAQeG3zhaPinOPkVweB2TjO22Li A Review of Fractions for the ASVAB: https://www.youtube.com/playlist?list=PLhlU-GzAQeG3rQjliSl-ThN_L2lF1iABE Basic Math Concepts on the ASVAB: https://www.youtube.com/playlist?list=PLhlU-GzAQeG1OuvH5wqon9Hih6mhHXDNG Free ASVAB Reference Sheet: https://www.asvabapp.com/Reference.pdf Affiliate Test Prep Resources ASVAB AFQT For Dummies: https://amzn.to/2W0hFsr​​ 2018 / 2019 ASVAB For Dummies: https://amzn.to/2WBK9Nk​​ ASVAB Prep Plus 2018-2019: https://amzn.to/2Ww48gE​​ ASVAB Study Guide 2019-2020 Secrets: ASVAB Test Prep: https://amzn.to/2wuruV4​​ Barron's ASVAB Flash Cards, 2nd Edition: https://amzn.to/2Wv4Quj​​ 1,001 ASVAB Practice Questions For Dummies (+ Free Online Practice): https://amzn.to/2Qx2bLm​​ ASVAB Bilingual, 1E https://amzn.to/2KiO0Zr​​ #GrammarHero​​ #PrimeNumbers​ #ASVAB​​ #AceTheASVAB #ASVABVersion #AFQT #PiCAT #AFQT #ASVABVersion