Class 6 Maths - CBSE
Prime Time
The chapter Prime Time in Class 6 Mathematics introduces students to the fascinating world of numbers by exploring factors, multiples, prime numbers, and composite numbers. Students learn how to break down numbers into their building blocks and discover special patterns. This chapter forms the foundation for advanced number theory, fractions, and LCM/HCF calculations in higher classes. In CBSE exams, questions from this chapter frequently appear as direct definitions, factor-finding exercises, and word problems, making it a high-scoring and essential section for building strong mathematical reasoning.
Start Learning FreeKey Concepts
Factors
A factor of a number is an exact divisor of that number which divides it without leaving any remainder.
Multiples
A multiple of a number is obtained by multiplying that number by any whole number.
Prime Numbers
Numbers greater than 1 that have only two factors: 1 and the number itself.
Composite Numbers
Numbers having more than two factors are called composite numbers.
Co-prime Numbers
Two numbers are said to be co-prime if they do not have any common factor other than 1.
Important Formulas
Board Exam Info
In CBSE Class 6 Mathematics exams, this chapter typically carries around 4 to 6 marks. Common question types include finding all factors of a given number, listing the first few multiples, identifying prime and composite numbers within a range, and solving divisibility tests.
Frequently Asked Questions
Is the number 1 a prime number or a composite number?
Number 1 is neither prime nor composite because it has only one factor (itself).
What is the difference between a factor and a multiple?
A factor is an exact divisor of a number and is always less than or equal to the number, whereas a multiple is obtained by multiplying the number and is always greater than or equal to the number.
Are all prime numbers odd?
No, 2 is an even number and it is also the smallest and only even prime number.
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