LibraryMath & LogicPrimes & Factors
#Math & Logic

Math & Logic · Editorial deck

Primes & Factors

Number structure and divisibility

25 cards~4 minReferences included

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2 chapters · 25 cards
  1. 01
    Prime numbers and divisibility20 cards · ~3 min
  2. 02
    Factors, multiples and decompositions5 cards · ~1 min

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01
Prompt: First prime number
Math & LogicA little curiosity
Number theory · RECALLFirst prime numberThink it. Then flip it.
02
Prompt: Prime after 3
Math & LogicA little curiosity
Number theory · RECALLPrime after 3Think it. Then flip it.
03
Prompt: Prime after 7
Math & LogicA little curiosity
Number theory · RECALLPrime after 7Think it. Then flip it.

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  1. 01First prime numberRECALL
  2. 02Prime after 3RECALL
    5

    Has exactly two positive factors

    Share this card ↗Source: Prime number
  3. 03Prime after 7RECALL
  4. 04Prime after 13RECALL
  5. 05Prime after 19RECALL
  6. 06Prime after 29RECALL
  7. 07Is 1 prime?RECALL
    No

    A prime has exactly two positive divisors

    Share this card ↗Source: Prime number
  8. 08Is 2 prime?RECALL
  9. 09Is 51 prime?RECALL
  10. 10Is 97 prime?RECALL
    Yes

    Only divisible by 1 and 97

    Share this card ↗Source: Prime number
  11. 11Prime factorization of 12RECALL
  12. 12Prime factorization of 18RECALL
  13. 13Prime factorization of 24RECALL
  14. 14Prime factorization of 45RECALL
  15. 15Prime factorization of 100RECALL
  16. 16Least common multiple of 5 and 8RECALL
    40

    They share no prime factors

    Share this card ↗Source: Prime number
  17. 17Smallest three-digit primeRECALL
    101

    Only divisible by 1 and 101

    Share this card ↗Source: Prime number
  18. 18Prime factorization of 72RECALL
  19. 19Is 91 prime?RECALL
  20. 20Largest prime below 50RECALL
    47

    Its only positive factors are 1 and 47

    Share this card ↗Source: Prime number
  21. 21Greatest common factor of 12 and 18RECALL
  22. 22Least common multiple of 4 and 6RECALL
    12

    The smallest shared multiple

    Share this card ↗Source: Prime number
  23. 23Greatest common factor of 21 and 28RECALL
  24. 24Least common multiple of 6 and 15RECALL
    30

    The smallest shared multiple

    Share this card ↗Source: Prime number
  25. 25Greatest common factor of 36 and 48RECALL

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