Factors and Multiples
_____________ of a number are 2 or more integers where their product is the number.
Factors
Find the HCF of 26 and 30
2
Find the LCM of 9 and 21
63
SImplify 6 ÷ 2 - 3
0
A _________________ number is a natural # > 1 that has only 1 and itself as factors.
PRIME
Find the LCM of 30 and 24
120
Simplify 52 - 5 × 2
42
Write all the prime factors of 440
2 x 2 x 2 x 5 x 11
What is the HCF of 80 and 200
40
Find the LCM of 2 x 25 and 9 x 5 x 7 and 2 x 3 x 49
22050
Simplify 25 ÷ 5 - 1
4
Write all the factors of 30X2Y
2 x 5 x X x X x Y
What is the HCF of 20 and 6 and 42
2
3/10 + 1/6 + 7/15
14/15
Simplify (9 - 9)² + 2 × 4
8
Write prime factors of 2457
3 x 3 x 3 x 7 x 13
Two numbers have a LCM of 18 and a HCF of 3. What are they?
6 and 9
What is the LCM of 4x and 10x2y
20x2y
Simplify (9 - 5)² + 5 × 2
26