PSLE Answer the following.
- What is the first common multiple of 2 and 3?
- List all the common factors of 23 and 46. Give your answers in numbers in ascending order. (Eg $(n1), $(n2), 2)
(a)
Multiples of 2: 2, 4, 6
Multiples of 3: 3, 6
First common multiple: 6
(b)
Factors of 23: 1, 23
Factors of 46: 1, 2, 23, 46
Common factors of 23 and 46: 1, 23
Answer(s): (a) 6; (b) 1, 23