IDENTIFICATION PRIME NUMBER
Number system of Class 9
Step 1: Find approximate square root of given number.
Step 2: Divide the given number by prime numbers less than approximate square root of number. If given number is not divisible by any of this prime number then the number is prime otherwise not.
question 571, is it a prime ?
Solution: Approximate square root of 571 = 24.
Prime number < 24 are 2, 3, 5, 7, 11, 13, 17, 19, & 23. But 571 is not divisible by any of these prime numbers so 571 is a prime number.
question Is 1 prime or composite number ?
Solution: 1 is neither prime nor composite number.
- Vedic sutra
- CLASSIFICATION OF NUMBERS
- Representation Of Rational Number Of A Real Number Line
- RATIONALISATION OF SURDS
- Rational Exponents Of A Real Number
- IDENTIFICATION PRIME NUMBER
- Rational Number In Decimal Representation
- Properties Of Rational Number
- GEOMETRICAL REPRESENTATION OF REAL NUMBERS
- BASIC LAWS OF SURDS
- OPERATION OF SURDS
- Positive And Negative Exponents Of Real Number
- LAWS OF RATIONAL EXPONENTS
- solved question
- Exercise 1
- Exercise 2
- Exercise 3(True-False)
- Exercise 4 (Fill in the blanks)
