Question

Write true or false:

(i)

1 is a prime number.

(ii)

There are 8 prime numbers between 1 – 20.

(iii)

12 is a prime number.

(iv)

21 has 4 factors – 1, 3, 7 and 21.

(v)

4, 6, 7, 8 and 9 are composite numbers.

(vi)

Consecutive numbers are always co-prime.
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Answer 1

Answer:

true

true

false

true

true

true I think

Answer 2

Answer:

1. true

2. false

3. false

4. true

5. false

6. false