Lesson details

Key learning points

  1. In this lesson, we will learn to identify prime and composite numbers.

Licence

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5 Questions

Q1.
Which number from the list is a factor of 14?
10
3
4
Correct answer: 7
Q2.
Which of the below is a common factor of 48 and 18?
5
Correct answer: 6
7
9
Q3.
What is the highest common factor of 12 and 30?
1
2
3
4
Correct answer: 6
Q4.
Which number from the list below is a multiple of 6?
16
Correct answer: 18
21
8
Q5.
Which of the numbers below is a multiple of 20 between 50 and 99?
40
50
Correct answer: 60
70

4 Questions

Q1.
Which of the below is the definition of a prime number?
Correct answer: A number that can only be divided by itself and one.
The result of multiplying a number by an integer.
This is a number that divides into another number exactly and without leaving a remainder.
Q2.
Which of the below is not a prime number?
Correct answer: 21
23
37
Q3.
How many prime numbers are there between 10 and 20?
1
Correct answer: 4
5
Q4.
What is the largest prime number under 100?
93
95
Correct answer: 97
99

Lesson appears in

UnitMaths / Multiplication and division