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Factors, Multiples and Prime Numbers

KS3 Maths Foundation Questions – Factors, Multiples and Prime Numbers

1) List all the multiples of 7 up to 84?

2) Find all the prime factors of:

a) 26:

b) 36:

c) 45:

d) 82:

e) 123:

f) 194:

g) 321:

3) Are the following numbers prime? Answer yes or no.

a) 7:

b) 69:

c) 54:

d) 83:

e) 91:

f) 31:

4) List all multiples of 4 less than 60:

5) Write down these numbers as a product of their prime factors:

a) 56 =

b) 69 =

c) 75 =

d) 96 =

e) 334 =

f) 217 =

g) 111 =

KS3 Maths Higher Questions – Factors, Multiples and Prime Numbers

1)List all the odd prime numbers up to 97 ?

2) Find all the multiples of:

a) 24:

b) 4036:

c) 45:

d) 2001:

e) 123:

f) 132:

g) 300:

3) Are the following numbers prime? Answer yes or no and why.

a) 7:

b) 113:

c) 35:

d) 83:

e) 97:

f) 31:

4) Write down these numbers as a product of their prime factors:

a) 220 =

b) 69 =

c) 504 =

d) 47 =

e) 334 =

f) 217 =

g) 25920 =