Factors, Multiples and Primes Flashcards
1
Q
What are Factors?
A
Factors are al the numbers that multiply together to make a number.
2
Q
What are the factors of 10?
A
110
25
so 1,2,5 and 10 are all factors of 10
3
Q
Find all the factors of 18..
A
1,2,3,6,9,18
4
Q
Find all the factors of 8.
A
1,2,4.8
5
Q
Find all the factors of 20.
A
1,2,4,510,20
6
Q
Find all the factors of 30.
A
1,2,3,5,6,10,15,30
7
Q
What are Multiples?
A
Multiples are all the number s in its time table.
8
Q
What are the first 5 multiples of 6?
A
6,12,18,24,30
9
Q
Write down the first 2 multiples of 9
A
9,18
10
Q
What is a prime number?
A
A prime number is a number that has only two Factors 1 and itself.
11
Q
Write down all the prime numbers between 1 and 20
A
11,13,17,19
12
Q
Here is a list of number
8 12 15 18 21 23
From the list write down:
A Factor of 30
A multiple of 7
A Prime Number
A
5
21
25
13
Q
A
