Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
For 5 and 6,
- First common multiple
- Lowest common multiple
- Third common multiple
- Highest common factor
(a)
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, ...
Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, ...
First common multiple = 30
(b)
Lowest common multiple = 30
(c)
Third common multiple
= 3 x 30
= 90
(d)
Factors of 5: 1, 5
Factors of 6: 1, 2, 3, 6
Highest common factor = 1
Answer(s): 30, 30, 90, 1