Primes, LCM, and HCF Math Grade 7

1, 2, 7 and 14 are all multiples of 7.

• True

• False

1, 2, 3, 4, 6, 9, 12, 18 and 36 are factors of 36.

• True

• False

A factor of 46 other than 1 and 46.

(just type 1 factor)

The first 4 multiples of 30 are:

• 1, 2, 3, 5

• 1 - 30

  2 - 15

  3 - 10

  5 - 6

• 60, 90, 120, 150

• 30, 60, 90, 120

Tick all prime numbers.

• 11

• 13

• 31

• 23

• 49

Tick all composite numbers.

• 24

• 19

• 27

• 81

• 37

If p and q are whole numbers such that p x q = 43

Find the value of p + q.

Express the following in index notation.

3x3x3x3x3x3x3

• 2

• 5

• 6

• 4