Mr Daniels Maths
Factors:Prime Factors,HCF and LCM

Set 1

Set 2

Set 3

Q1) Write 50 as a product of its prime factors. [ 2 x 52]

Q1) Find the HCF of 26 and 39. [ 13 ]

Q1) Find the LCM of 18,10 and 5. [ 90 ]

Q2) Write 22 as a product of its prime factors. [ 2 x 11]

Q2) LCM of 40 and 28. [ 280 ]

Q2) Find the LCM of 30,15 and 18. [ 90 ]

Q3) Write 4 as a product of its prime factors. [ 22]

Q3) LCM of 20 and 24. [ 120 ]

Q3) Find the LCM of 42,21 and 18. [ 126 ]

Q4) Write 15 as a product of its prime factors. [ 3 x 5]

Q4) LCM of 18 and 32. [ 288 ]

Q4) HCF of 120,192 and 144. [ 24 ]

Q5) Write 87 as a product of its prime factors. [ 3 x 29]

Q5) Find the HCF of 22 and 33. [ 11 ]

Q5) Find the HCF 160 and 240. [ 80 ]

Q6) Write 94 as a product of its prime factors. [ 2 x 47]

Q6) LCM of 24 and 33. [ 264 ]

Q6) Find the LCM of 36,6 and 8. [ 72 ]

Q7) Write 88 as a product of its prime factors. [ 23 x 11]

Q7) LCM of 10 and 18. [ 90 ]

Q7) Find the HCF 135 and 225. [ 45 ]

Q8) Write 81 as a product of its prime factors. [ 34]

Q8) Find the HCF of 24 and 36. [ 12 ]

Q8) HCF of 60,270 and 30. [ 30 ]

Q9) Write 28 as a product of its prime factors. [ 22 x 7]

Q9) LCM of 20 and 35. [ 140 ]

Q9) Find the LCM of 21,24 and 12. [ 168 ]

Q10) Write 21 as a product of its prime factors. [ 3 x 7]

Q10) LCM of 22 and 40. [ 440 ]

Q10) HCF of 208,80 and 32. [ 16 ]