18What isthe largestfactor of18?918 blue and27 red pensin equalsets. Maxsets?3,5List theprimefactors of15.2,3List theprimefactors of12.14Find theHCF of 28and 70.520 applesand 35 pearssharedequally. Maxpeople?12Find theHCF of 48and 60.8Find theHCF of 16and 40.11Find theprimefactor of121.1What isthe HCFof 8 and15?10Find theHCF of30, 70,and 100.2,3,5List allprimefactors of60.16List a factorof 32 that isbetween 10and 20.2Cut 10m and12m ribbonsinto equallongestpieces.2,5List theprimefactors of50.6Find theHCF of 18and 30.13What isthe primefactor of169?15Tiles:Largestsquare tilefor a 45m x60m floor.3How manyfactors doesthe number4 have?2,7List theprimefactors of14.1,3,9List all thefactors of9.7Find theHCF of 21and 49.4Which factorof 20 ismissing: 1,2, __, 5, 10,20?5,7List theprimefactors of35.18What isthe largestfactor of18?918 blue and27 red pensin equalsets. Maxsets?3,5List theprimefactors of15.2,3List theprimefactors of12.14Find theHCF of 28and 70.520 applesand 35 pearssharedequally. Maxpeople?12Find theHCF of 48and 60.8Find theHCF of 16and 40.11Find theprimefactor of121.1What isthe HCFof 8 and15?10Find theHCF of30, 70,and 100.2,3,5List allprimefactors of60.16List a factorof 32 that isbetween 10and 20.2Cut 10m and12m ribbonsinto equallongestpieces.2,5List theprimefactors of50.6Find theHCF of 18and 30.13What isthe primefactor of169?15Tiles:Largestsquare tilefor a 45m x60m floor.3How manyfactors doesthe number4 have?2,7List theprimefactors of14.1,3,9List all thefactors of9.7Find theHCF of 21and 49.4Which factorof 20 ismissing: 1,2, __, 5, 10,20?5,7List theprimefactors of35.

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