Question
What is the least number that should be multiplied to
735 so that it becomes divisible by 42?Solution
Since, 735 = 3 × 5 × 7 × 7 To be divisible by ‘42’, a number must be divisible by all 2, 3 and 7. Since, 735 is divisible by ‘3’ and ‘7’. So, the least number that we need to multiply is ‘2’. Therefore, required answer is 2.
The HCF and LCM of two consecutive even number is 2 and 112 respectively. Find the sum of reciprocal of these two numbers?
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The L.C.M of a² – 2a – 3 and a³ + a² + a + 1 is
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If total number of factors of 5,292 is 'x', then find the value of (x - 7)(x + 2).
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