Terms

Question 1

What does LCM and HCF stand for?

Answer 1

LCM: Lowest common multiple
HCF: Highest common factor

Question 2

What is the HCF and LCM of a number?

Answer 2

An HCF is the highest shared factor that can be divided into both numbers.
An LCM is the lowest shared multiple that both numbers have in their timetables.

Question 3

The power of a number can also be called what?

Answer 3

An index

Question 4

What does sf stand for and what does it mean?

Answer 4

Sf stands for Significant figure, when we are told to round to one 1 sf we round the number next to the first non-zero digit number.

Question 5

What is a factor tree used to find?

Answer 5

A factor tree is used to find the prime factors of a number, if a factor tree is done right, the prime factors will always be the same, no matter how you split up the number.

Question 6

What is a factor pair?

Answer 6

A factor pair is a set of numbers that are paired to get a product. They can be used to find the factors of a number.
e.g. 1 x 12, 2 x 6, 3 x 4 are factor pairs of 12, so the factors of 12 are, 1, 2, 3, 4, 6, 12