Advertisements
Advertisements
Question
The HCF of two numbers is 145 and their LCM is 2175. If one number is 725, find the other.
Advertisements
Solution
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`
RELATED QUESTIONS
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.
Given that HCF (306, 657) = 9, find LCM (306, 657).
Check whether 6n can end with the digit 0 for any natural number n.
Explain why 7 × 11 × 13 + 13 and 7 × 6 × 5 × 4 × 3 × 2 × 1 + 5 are composite numbers.
Determine the prime factorisation of each of the following positive integer:
45470971
If the prime factorization of a natural number n is 23 ✕ 32 ✕ 52 ✕ 7, write the number of consecutive zeros in n.
Express the number as a product of its prime factor:
5005
Find the LCM and HCF of the following integers by applying the prime factorisation method.
8, 9 and 25
For some integer p, every odd integer is of the form ______.
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 largest number which divides 60 and 75, leaving remainders 8 and 10 respectively, is ______.
The number in the form of 4p + 3, where p is a whole number, will always be ______.
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 p and q can be expressed as p = ab2 and q = a3b; a, b being prime numbers, then LCM (p, q) 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.
(HCF × LCM) for the numbers 70 and 40 is ______.
(HCF × LCM) for the numbers 30 and 70 is ______.
The HCF of the smallest 2-digit number and the smallest composite number is ______.
