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IB Maths Studies-Numbers
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Terms in this set (16)
Natural numbers
N
(0,1,2,3...)
Integer Numbers
Z
(...-3, -2, -1, 0, 1, 2, 3...)
Positive Integer Numbers
Z+
(1,2,3...)
Rational Numbers
Q
Any number that can be written as a fraction, expressed as a ratio of two.
(...-1/2,-1/1,0,1/1,1/2...)
Positive Rational Numbers
Q+
(1/1,1/2,1/3...)
Irrational Numbers
Numbers that cannot be expressed as a ratio of two integers. Their decimal expansions are non-ending and non-repeating.
(Pi)
Real Numbers
QUQ'
All numbers on the number line.
Positive Real Numbers
R+
All numbers on the number line above 0.
Prime Numbers
A positive integer which has only 1 and the number itself as factors.
Factors
Natural numbers more than 0, multiplied together.
Greatest Common Factor (GCF) of two or more natural numbers.
The greatest number that will divide into all of the given numbers.
Least Common Factor (LCM) of two or more natural numbers.
The smallest number that the given numbers will divide into.
Ratio
A quotient (fraction) of two numbers.
Proportion
An equation involving two ratios.
Denominator
Bottom number of a fraction.
Numerator
Top number of a fraction.
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