Prime factorisation can be used for a number of purposes such as finding the HCF of two or more numbers. Let us learn more about it Using Prime Factorisation to find HCF of two numbers The highest common factor ( H. C. F. ) of two or more numbers is the greatest or the largest amo...
(i)Find the LCM and HCF of the following integers by applying the prime factorisation method:-12,15 and21 (ii)Find the LCM and HCF of the following integers by applying the prime factorisation method:-17,23 and 29 (iii) View Solution Find the LCM and HCF of the following integers ...
Find the LCM and HCF of the following integers by the prime factorization method. 20, 35 and 45 View Solution In the prime factorisation method of finding LCM, LCM is given by prodcut of ___all the factors. View Solution Find the
So, the prime factors of 100 are written as2 x 2 × 5 x 5 or 22x 52, where 2 and 5 are the prime numbers. It is possible to find the exact number of factors of a number 100 with the help of prime factorisation. The prime factor of the 100 is 22x 52. Is infinity a number?
5.4 Prime Factorisation Figure it Out (Page No. 122) Question 1. Are the following pairs of numbers co-prime? Guess first and then use prime factorization to verify your answer. (a) 30 and 45 (b) 57 and 85 (c) 121 and 1331
8. The prime factorisation of two numbers are2^5*5^(10)*11*13^2and2^3*5*11*17^3 (a) Find the(i) HCF and,(ii) LCM of these two numbers, expressing your answers in index notation.(b)Find the smallest positive integer k such that √(2^5*5^1*11*13^2*k)is whole number...
HCF of co-prime numbers 4 and 15 was found as follows by factorisation:4 = 2 × 2 and 15 =3 × 5 since there is no common prime factor, so HCF of 4 and 15 is 0.Is the answer correct? If not, what is the correct HCF?
The Prime Factors of a Number Example Question Express 108 as a Product of Prime Factors We use the “Factor Tree” Method Prime Factors are the “fruits” of our “tree”...
In this article, we will find HCF of two numbers using factorisation and division method, with the help of solved examples. Also, find the HCF of three numbers, here at BYJU’S.
HCF of co-prime numbers 4 and 15 was found as follows by factorisation : and since there is no common prime factor, so HCF of 4 and 15 is 0. Is the answ