Factors and Multiples Coffee With

How many prime numbers are there in between 80 and 100 ?

• 1

• 0

• 2

• 3

Which of the following numbers is not a factor of 145760?

• 2

• 5

• 3

• 8

5 x 2 x 3 x 3 = ________

• ₃₀

• 90

• 60

• 15

# should be replaced by which number to make the number 352148#2 divisible by 3?

• 6

• 2

• 4

• 1

The H.C.F and L.C.M of 15, 20 and 30 is _____ and _______.

• 60, 30

• 30 , 30

• 30 , 60

• 5 , 60

Every number is either prime or composite.

• True

• False

The H.C.F of two numbers is always a multiple of their L.C.M.

• False

• True

The largest multiple of 21 is 21.

• _False

• True

1 is a factor of every number.

• True.

• False

The L.C.M of 234 and 280 is 2080.

• True

• False