PSLE Answer the following.
- What is the first common multiple of 2 and 7?
- List all the common factors of 17 and 34. Give your answers in numbers in ascending order. (Eg $(n1), $(n2), 2)
(a)
Multiples of 2: 2, 4, 6, 8, 10, 12, 14
Multiples of 7: 7, 14
First common multiple: 14
(b)
Factors of 17: 1, 17
Factors of 34: 1, 2, 17, 34
Common factors of 17 and 34: 1, 17
Answer(s): (a) 14; (b) 1, 17