Maths - Types of numbers
Types of numbers
- Square Number - Any number raised to the power 2 gives a square number. 6² = 6 x 6 = 36 (six squared)
- Cube Number - Any number to the power 3 gives a cube number. 5³ = 5 x 5 x 5 = 125 (five cubed)
- Multiple - Multiples are the numbers that appear in multiplication tables.
- Reciprocal - The reciprocal of a number a over x is x over a (=x divided a) Multiplying a number by its reciprocal always gives 1.
- Factor - Factors are whole numbers which divide exactly into another number. The factors of 20 are 1, 2, 4, 5, 10, 20.
- Prime Numbers - A prime number is a number which has only two factors, 1 and itself. 1 is not a prime number.
- Highest common factor (HCF) - The largest factor that two numbers have in common is called HCF.
- Least common multiple (LCM) - The LCM is the lowest number that is a multiple of two or more numbers.
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