Nice presentation of the given solution! I love it ❤...
@MathBooster Жыл бұрын
Thank you! 🙂
@piman9280 Жыл бұрын
When finding the prime factors of 7601, why even consider if 9 is a factor (when 3 is not)?
@abdoali6268 Жыл бұрын
Keep going 💪❤ from Egypt
@Crazy_mathematics Жыл бұрын
x = sin(θ) θ= cos(x) Find at what point x(θ)=θ(x)
@vijayannair2316 Жыл бұрын
Nice
@adgf1x Жыл бұрын
20^5+21=2^5×10^5+21=3200021
@birandkoray Жыл бұрын
you have to prove that 3 digit numbers are prime
@MathBooster Жыл бұрын
It is given in the question that two prime factors of N are 3-digit numbers. So, if we get more that two 3-digit factors of N then only we need to check that which two numbers are prime. Otherwise there is no need to check.
@timeonly1401 Жыл бұрын
For any 3-digit number n, it's easy enough to check all primes up to and less than the square root of the largest perfect square that's less than n. So, at worse, you'd try all the primes up to 31 (since the largest 3-digit perfect square is 31²=961): {2,3,5,7,11,13,17,19,23,29,31}. The largest perfect square just less than 421 is 20²=400, so try primes up to 19. For 691, the largest perfect square less than 691 is 26²=676, so try primes up to 23, which is only 9 primes; not that bad.
@birandkoray Жыл бұрын
@@timeonly1401 i expect this to be explained in the video