2,7List theprimefactors of14.3,5List theprimefactors of15.6Find theHCF of 18and 30.14Find theHCF of 28and 70.18What isthe largestfactor of18?4Which factorof 20 ismissing: 1,2, __, 5, 10,20?2Cut 10m and12m ribbonsinto equallongestpieces.10Find theHCF of30, 70,and 100.11Find theprimefactor of121.5,7List theprimefactors of35.8Find theHCF of 16and 40.16List a factorof 32 that isbetween 10and 20.3How manyfactors doesthe number4 have?2,5List theprimefactors of50.2,3List theprimefactors of12.12Find theHCF of 48and 60.1,3,9List all thefactors of9.2,3,5List allprimefactors of60.918 blue and27 red pensin equalsets. Maxsets?520 applesand 35 pearssharedequally. Maxpeople?7Find theHCF of 21and 49.15Tiles:Largestsquare tilefor a 45m x60m floor.1What isthe HCFof 8 and15?13What isthe primefactor of169?2,7List theprimefactors of14.3,5List theprimefactors of15.6Find theHCF of 18and 30.14Find theHCF of 28and 70.18What isthe largestfactor of18?4Which factorof 20 ismissing: 1,2, __, 5, 10,20?2Cut 10m and12m ribbonsinto equallongestpieces.10Find theHCF of30, 70,and 100.11Find theprimefactor of121.5,7List theprimefactors of35.8Find theHCF of 16and 40.16List a factorof 32 that isbetween 10and 20.3How manyfactors doesthe number4 have?2,5List theprimefactors of50.2,3List theprimefactors of12.12Find theHCF of 48and 60.1,3,9List all thefactors of9.2,3,5List allprimefactors of60.918 blue and27 red pensin equalsets. Maxsets?520 applesand 35 pearssharedequally. Maxpeople?7Find theHCF of 21and 49.15Tiles:Largestsquare tilefor a 45m x60m floor.1What isthe HCFof 8 and15?13What isthe primefactor of169?

Factors, Prime Factors & Highest Common Factors(HCF) - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. List the prime factors of 14.
    2,7
  2. List the prime factors of 15.
    3,5
  3. Find the HCF of 18 and 30.
    6
  4. Find the HCF of 28 and 70.
    14
  5. What is the largest factor of 18?
    18
  6. Which factor of 20 is missing: 1, 2, __, 5, 10, 20?
    4
  7. Cut 10m and 12m ribbons into equal longest pieces.
    2
  8. Find the HCF of 30, 70, and 100.
    10
  9. Find the prime factor of 121.
    11
  10. List the prime factors of 35.
    5,7
  11. Find the HCF of 16 and 40.
    8
  12. List a factor of 32 that is between 10 and 20.
    16
  13. How many factors does the number 4 have?
    3
  14. List the prime factors of 50.
    2,5
  15. List the prime factors of 12.
    2,3
  16. Find the HCF of 48 and 60.
    12
  17. List all the factors of 9.
    1,3,9
  18. List all prime factors of 60.
    2,3,5
  19. 18 blue and 27 red pens in equal sets. Max sets?
    9
  20. 20 apples and 35 pears shared equally. Max people?
    5
  21. Find the HCF of 21 and 49.
    7
  22. Tiles: Largest square tile for a 45m x 60m floor.
    15
  23. What is the HCF of 8 and 15?
    1
  24. What is the prime factor of 169?
    13