HCF and LCM

What is the LCM of 2,3 and 9

• 19

• 6

• 9

• 18

click the statements wich are false

• 8 and 15 are co - primes

• prime numbers wich differ by 3 are twin primes.

• the smallest composite number is 4

• 33 is a even number

• 0 is a multiple of every number

Write 36 as the product of its prime factors...

• 2 x 2 x 3 x 3

• 2 x 2 x 2 x 3

• 2² x 3²

• 2² x 3

Write 36 as the product of its prime factors...

• 2 x 2 x 3 x 3

• 2 x 2 x 2 x 3

• 2² x 3²

• 2² x 3

What does HCF stand for?

• Highest common factor

• Highest core frequency

• Highest common frequency

• Highest core factor

what are the first 5 prime numbers in ascending order?

• 2,3,4,5,11

• 1,2,3,5,11

• 2,3,5,7,11

• 2,3,11,7,5

What does LCM stand for?

• lowest common number

• lowest core number

• lowest core multiple

• lowest common multiple

Solve this with common division method-

Find the HCF of 60 and 72

• HCF = 2 X 2 X 3
  = 12

• HCF = 2 X 7
  = 14

• HCF = 2 X 2 X 4
  = 16

Which is the only prime number that is even?

• 14

• 22

• 17

• 2

What does HCF stand for?

• Highest common factor

• Highest core frequency

• Highest common frequency

• Highest core factor