Advertisements
Advertisements
प्रश्न
Find the LCM and HCF of the following integers by applying the prime factorisation method.
8, 9 and 25
Advertisements
उत्तर
 |
 |
 |
8 = 2 × 2 × 2
9 = 3 × 3
25 = 5 × 5
L.C.M of 8, 9 and 25 = `2^2xx3^2xx5^2`
L.C.M of 8, 9 and 25 = 1800
H.C.F of 8, 9 and 25 = 1
संबंधित प्रश्न
Express the number as a product of its prime factor:
140
Find the LCM and HCF of the following integers by applying the prime factorisation method:
84, 90 and 120
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.
\[\frac{3}{8}\]
Express the number as a product of its prime factor:
5005
Find the greatest number consisting of 6 digits which is exactly divisible by 24, 15, 36?
What is the smallest number that when divided by three numbers such as 35, 56 and 91 leaves remainder 7 in each case?
Find the least positive value of x such that 89 ≡ (x + 3) (mod 4)
Express 98 as a product of its primes.
The product of two consecutive natural numbers is always ______.
When a number is divided by 7, its remainder is always ______.
The ratio of LCM and HCF of the least composite and the least prime numbers is ______.
Let a and b be two positive integers such that a = p3q4 and b = p2q3, where p and q are prime numbers. If HCF (a, b) = pmqn and LCM (a, b) = prqs, then (m + n)(r + s) = ______.
Statement A (Assertion): If product of two numbers is 5780 and their HCF is 17, then their LCM is 340.
Statement R (Reason): HCF is always a factor of LCM.
Two numbers are in the ratio 2 : 3 and their LCM is 180. What is the HCF of these numbers?
(HCF × LCM) for the numbers 70 and 40 is ______.
The mean of first ten natural numbers is ______.
National Art convention got registrations from students from all parts of the country, of which 60 are interested in music, 84 are interested in dance and 108 students are interested in handicrafts. For optimum cultural exchange, organisers wish to keep them in minimum number of groups such that each group consists of students interested in the same artform and the number of students in each group is the same. Find the number of students in each group. Find the number of groups in each art form. How many rooms are required if each group will be allotted a room?
Three bells toll at intervals of 9, 12 and 15 minutes respectively. If they start tolling together, after what time will they next toll together?
