Advertisements
Advertisements
प्रश्न
State Fundamental Theorem of Arithmetic.
Advertisements
उत्तर
FUNDAMENTAL THEOREM OF ARITHMETIC:
Every composite number can be expressed (factorised) as a product of primes, and this factorization is unique except for the order in which the prime factors occur.
While writing a positive integer as the product of primes, if we decide to write the prime factors in ascending order and we combine the same primes, then the integer is expressed as the product of powers of primes and the representation is unique.
So,we can say that every composite number can be expressed as the products of powers distinct primes in ascending or descending order in a unique way.
APPEARS IN
संबंधित प्रश्न
Consider the number 6n where n is a natural number. Check whether there is any value of n ∈ N for which 6n is divisible by 7.
Check whether 6n can end with the digit 0 for any natural number n.
State fundamental theorem of arithmetic?
Find the LCM and HCF of the following integers by applying the prime factorisation method:
24, 15 and 36
Can two numbers have 16 as their HCF and 380 as their LCM? Give reason.
Write down the decimal expansions of the following rational numbers by writing their denominators in the form 2m × 5n, where, m, n are non-negative integers.\[\frac{13}{125}\]
Write the exponent of 2 in the price factorization of 144.
For what value of natural number n, 4n can end with the digit 6?
Find the greatest number consisting of 6 digits which is exactly divisible by 24, 15, 36?
Find the least number that is divisible by the first ten natural numbers
There is a circular path around a sports field. Priya takes 18 minutes to drive one round of the field. Harish takes 12 minutes. Suppose they both start at the same point and at the same time and go in the same direction. After how many minutes will they meet?
If two positive integers A and B can be expressed as A = xy3 and B = x4y2z; x, y being prime numbers then HCF (A, B) is ______.
The ratio of LCM and HCF of the least composite and the least prime numbers is ______.
If the HCF of 65 and 117 is expressible in the form 65m – 117, then the value of m is ______.
The least number that is divisible by all the numbers from 1 to 10 (both inclusive) is ______.
Show that 12n cannot end with the digit 0 or 5 for any natural number n.
Read the following passage:
|
Khushi wants to organize her birthday party. Being health conscious, she decided to serve only fruits in her birthday party. She bought 36 apples and 60 bananas and decided to distribute fruits equally among all. |
Based on the above information, answer the following questions:
- How many guests Khushi can invite at the most?
- How many apples and bananas will each guest get?
-
- If Khushi decides to add 42 mangoes, how many guests Khushi can invite at the most?
OR - If the cost of 1 dozen of bananas is ₹ 60, the cost of 1 apple is ₹ 15 and cost of 1 mango is ₹ 20, find the total amount spent on 60 bananas, 36 apples and 42 mangoes.

- If Khushi decides to add 42 mangoes, how many guests Khushi can invite at the most?
The prime factorisation of the number 2304 is ______.
If two positive integers a and b are written as a = x3y2 and b = xy3, where x, y are prime numbers, then the result obtained by dividing the product of the positive integers by the LCM (a, b) is ______.
