Question

LCM of first 100 natural numbers is N. What is the LCM of first 105 natural numbers?

• A. $5!\times N$
• B. 10,403 N
• C. 105N/103
• D. 4N

Answer 1

The correct option is B 10,403 N

If we look at the numbers 100 < N < 105, we see that only 101 and 103 do not have their factors in N (because these are primes). Therefore, the new LCM will be $101\times 103\times N.$