Number Theory – Page 46

The-sum-of-the-digits-of-the-number-2-2000-5-2004-is-Will-it-be-13-or-14-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 17252 by Tinkutara last updated on 02/Jul/17 $The sum of the digits of the number$ $2^{2000} 5^{2004} is$ $Will it be 13 or 14 ?$ Commented by prakash jain last updated on…

Question-148211

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 148211 by Tawa11 last updated on 26/Jul/21 Answered by Kamel last updated on 26/Jul/21 $W_{0} (x), ∣ x ∣< \frac{1}{e} .$ Terms of Service Privacy Policy…

Find-two-primes-a-and-b-such-that-a-b-995-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 17142 by RasheedSoomro last updated on 01/Jul/17 $Find two primes a and b such$ $that$ $a - b = 995$ Commented by prakash jain last updated on 01/Jul/17 $$\mathrm{All}\:\mathrm{prime}\:\mathrm{except}\:\mathrm{2}\:\mathrm{are}\:\mathrm{odd}.…

If-a-b-c-are-in-Harmonic-progression-find-the-value-of-a-b-b-a-b-c-b-c-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 82628 by jagoll last updated on 23/Feb/20 $I f a, b, c a r e i n H a r m o n i c p r o g r e s s i o n$ $f i n d t h e v a l u e o f \frac{a + b}{b - a} + \frac{b + c}{b - c} . ?$ Commented by $@ t y @ m 123 l a s t u p d a t e d o n 23 / F e b / 20$ $\frac{1}{a}, \frac{1}{b}, \frac{1}{c} a r e i n A P$ $$$\Rightarrow\frac{\mathrm{1}}{{b}}−\frac{\mathrm{1}}{{a}}=\frac{\mathrm{1}}{{c}}−\frac{\mathrm{1}}{{b}}=\boldsymbol{{d}},\:{say} \…

Find-the-number-of-positive-integers-less-than-or-equal-to-300-that-are-multiples-of-3-or-5-but-are-not-multiples-of-10-or-15-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 16880 by Tinkutara last updated on 27/Jun/17 $Find the number of positive integers$ $less than or equal to 300 that are$ $multiples of 3 or 5, but are not$ $multiples of 10 or 15 .$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Find-out-last-odd-digit-in-the-expansion-of-1000-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 15891 by RasheedSoomro last updated on 15/Jun/17 $Find out last odd digit in the$ $expansion of 1000!$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Find-out-first-non-five-digit-from-right-in-the-expansion-of-1-3-5-625-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 15889 by RasheedSoomro last updated on 15/Jun/17 $Find out first non - five digit from right$ $in the expansion of (1 \times 3 \times 5 \times \dots \times 625) .$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Number-of-decimal-digits-in-50-is-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 15835 by RasheedSoomro last updated on 15/Jun/17 $Number of$ $decimal digits$ $in 50! is$ Commented by RasheedSoomro last updated on 15/Jun/17 $$\mathrm{By}\:\mathrm{decimal}\:\mathrm{digits}\:\mathrm{I}\:\mathrm{mean}\:\mathrm{digits}\:\mathrm{in}\:\mathrm{10}-\mathrm{base}\:\mathrm{system}. \…

Find-all-rational-solution-of-the-equation-a-b-ab-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 15788 by tawa tawa last updated on 13/Jun/17 $Find all rational solution of the equation a + b = ab$ Commented by mrW1 last updated on 14/Jun/17 $b = \frac{n}{m}$ $a + \frac{n}{m} = a \times \frac{n}{m}$ $$\left(\frac{\mathrm{n}}{\mathrm{m}}−\mathrm{1}\right)\mathrm{a}=\frac{\mathrm{n}}{\mathrm{m}}…

Prove-that-2-2-2n-1-2-2-2n-1-is-never-a-prime-for-any-positive-n-

Tinku Tara June 4, 2023 Number Theory 0 Comments

Question Number 15789 by tawa tawa last updated on 13/Jun/17 $Prove that : 2^{2^{2 n + 1}} + 2^{2^{2 n}} + 1, is never a prime for any positive n .$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Category: Number Theory