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Types of Number Video Lecture | Mathematics for GCSE/IGCSE - Class 10

FAQs on Types of Number Video Lecture - Mathematics for GCSE/IGCSE - Class 10

1. Is zero a natural number?
Ans. Zero is not considered a natural number. Natural numbers start from 1 and progress upwards, while zero is considered a separate category known as a whole number.
2. What is the difference between rational and irrational numbers?
Ans. Rational numbers can be expressed as a fraction of two integers, while irrational numbers cannot be expressed in this form and have non-repeating, non-terminating decimal expansions.
3. Can a number be both rational and irrational at the same time?
Ans. No, a number cannot be both rational and irrational simultaneously. A number is either rational or irrational based on its properties and representation.
4. Are all whole numbers integers?
Ans. Yes, all whole numbers are integers, but not all integers are whole numbers. Integers include both positive and negative whole numbers, along with zero.
5. How can you determine if a number is prime or composite?
Ans. A prime number has only two factors: 1 and itself, while a composite number has more than two factors. To determine if a number is prime or composite, you can check if it has any factors other than 1 and itself.
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