PSLE Answer the following.
- What is the first common multiple of 6 and 11?
- List all the common factors of 28 and 58. Give your answers in numbers in ascending order. (Eg $(n1), $(n2), 6)
(a)
Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66
Multiples of 11: 11, 22, 33, 44, 55, 66
First common multiple: 66
(b)
Factors of 28: 1, 2, 4, 7, 14, 28
Factors of 58: 1, 2, 29, 58
Common factors of 28 and 58: 1, 2
Answer(s): (a) 66; (b) 1, 2