Terms 1

Question 1

Factor

Answer 1

A number’s divisors, i.e: the numbers that divide into it evenly with no remainder.

Question 2

Prime number

Answer 2

Has exactly two different factors, itself and 1

Question 3

Composite number

Answer 3

A whole number that can be divided evenly by numbers other than itself and 1.

Question 4

Highest Common Factor (HCF)

Answer 4

The largest factor that divides two (or more) numbers.

Question 5

Co-prime

Answer 5

Relatively prime, numbers with no common factors other than 1.

Question 6

Multiple

Answer 6

Result of multiplying a number by an integer.

Question 7

Lowest common multiple (LCM)

Answer 7

The smallest number (not zero) that is a multiple of both (or all of the) numbers.

Question 8

Rational number (Q)

Answer 8

Numbers that can be expressed in the form a/b, where a,b are integers but b is not 0.

Question 9

Irrational numbers R/Q

Answer 9

Real numbers that can not be expressed in the form a/b where a,b are integers but b is not 0.