00:00Welcome everyone. So today we are going to understand why the answer for this one is not supposed to be 11.
00:08See what happens is when you look at the entire series, this is prime, this is also prime and this is also prime.
00:15And what happens over here is that after 2, the prime number which happens to come is 3.
00:22Okay, but then they have skipped that and we've gotten 5.
00:25So a lot of people thought that let's skip this 7 and the answer should be 11.
00:30Now if that was the case, then this would have been what?
00:33After 11, the prime number which happens over here is 13.
00:36So this should have been 17.
00:38But that's not the case.
00:40So meaning this is definitely not going to be the workings.
00:44Now if you look closely, what happens is here.
00:50Okay, we have 5 and here we have 3.
00:53Okay, so between 2 and 5 we have 3.
00:56So what if we skip 2 prime numbers?
01:01So here, let's, because the prime number 29 is too far, so maybe they are increasing the skipping of prime numbers.
01:08So we skip 7 and 11.
01:10So here the next prime number should have been 13.
01:13Now after 13, the prime numbers means we have to literally skip 3 prime numbers.
01:19So that is what?
01:2017, 19 and 23.
01:24And then after 23, the prime number which comes is 29.
01:28Okay, so here we can say the answer for this question mark is supposed to be just 13.
01:34I hope this is very, very clear to everyone.
01:38That's it for today.
01:39I will see you in the next video.
01:40I will see you in the next video.
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