Advertisements
Advertisements
प्रश्न
The HCF of two numbers is 145 and their LCM is 2175. If one number is 725, find the other.
Advertisements
उत्तर
GIVEN: LCM and HCF of two numbers are 2175 and 145 respectively. If one number is 725
TO FIND: Other number
We know that,
L.C.M x H.C.M = First Numbers x Second Numbers
2175 x 145 = 725 x Second Numbers
Second Numbers = `(2175 xx145)/725`
संबंधित प्रश्न
Explain why 7 × 11 × 13 + 13 and 7 × 6 × 5 × 4 × 3 × 2 × 1 + 5 are composite numbers.
There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field, while Ravi takes 12 minutes for the same. 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 again at the starting point?
Determine the prime factorisation of each of the following positive integer:
20570
Determine the prime factorisation of each of the following positive integer:
58500
Find the LCM and HCF of the following integers by applying the prime factorisation method:
40, 36 and 126
Find the LCM and HCF of the following integers by applying the prime factorisation method.
17, 23 and 29
If m, n are natural numbers, for what values of m, does 2n × 5m ends in 5?
What is the smallest number that when divided by three numbers such as 35, 56 and 91 leaves remainder 7 in each case?
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 ______.
For some integer q, every odd integer is of the form ______.
If the HCF of 65 and 117 is expressible in the form 65m – 117, then the value of m is ______.
If two positive integers a and b are written as a = x3 y2 and b = xy3; x, y are prime numbers, then HCF (a, b) 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) = ______.
Show the 6n cannot end with digit 0 for any natural number 'n'.
Find the HCF and LCM of 72 and 120.
Find the HCF and LCM of 26, 65 and 117, using prime factorisation.
If HCF (72, 120) = 24, then LCM (72, 120) 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?
