Category: Number Theory

Question Number 94025 by Rasheed.Sindhi last updated on 16/May/20 $$\mathrm{LCM}(a,\frac{3}{5}a)=3a\wedge \mathrm{HCF}(a,\frac{3}{5}a)=\frac{1}{5}a$$$$a=?$$ Commented by som(math1967) last updated on 16/May/20 $$\mathrm{sir},\mathrm{if}\mathrm{a}=5\mathrm{then}\mathrm{L}.\mathrm{C}.\mathrm{M}=15$$$$\mathrm{i}.\mathrm{e}\:\mathrm{3}×\mathrm{5} \…

Question Number 159461 by Rasheed.Sindhi last updated on 17/Nov/21 $$\prec \mathbb{PRIME}-\mathcal{BIRTHDAYS}\succ$$$$\mathrm{Do}\mathrm{you}\mathrm{know}{}^{\prime }{\mathrm{Prime}1611}^{\prime }?\dots$$$$\mathrm{No},\mathrm{no}{\mathrm{it}}^{\prime }\mathrm{s}\mathrm{not}\mathrm{an}\mathrm{ID}\mathrm{of}\mathrm{the}\mathrm{forum}-$$$$\mathrm{member}.\mathrm{It}\mathrm{is}\mathrm{a}\mathrm{person}\mathrm{who}\mathrm{was}\mathrm{born}$$$$\mathrm{on}\mathrm{November}16,0001.\mathrm{On}\mathrm{his}$$$$\mathrm{birthday}\mathrm{astrologers}\mathrm{formed}\mathrm{a}\mathrm{string}$$$$\mathrm{from}\mathrm{his}\mathrm{birthdate}\mathrm{in}\mathrm{the}\mathrm{way}:$$$$'\mathrm{ddmmyyyy}':\:'\mathrm{16110001}'\:\mathrm{The}\:\mathrm{astro}- \…

Question Number 28186 by Tinkutara last updated on 25/Jan/18 $$Findthenumberofpositiveintegers$$$$xsuchthat\left[\frac{x}{m-1}\right]=\left[\frac{x}{m+1}\right],fora$$$$particularintegerm⩾2.$$$$\left[\right]meansG.I.F.$$ Commented by abdo imad last updated on…

Question Number 27922 by Rasheed.Sindhi last updated on 17/Jan/18 $$\mathrm{a},\mathrm{b}\mathrm{\&}\mathrm{c}\mathrm{are}\mathbf{distinct}\mathbf{primes}\mathrm{and}$$$$\mathrm{x},\mathrm{y},\mathrm{z}\in \{0,1,2,\dots \}.$$$$\mathrm{What}\mathrm{is}\mathrm{the}\mathrm{number}\mathrm{of}\mathbf{divisors},$$$$\mathbf{common}\mathrm{to}\mathrm{the}\mathbf{numbers}{\mathbf{a}}^{\mathbf{x}}{\mathbf{b}}^{\mathbf{y}}{\mathbf{c}}^{\mathbf{z}},$$$$\boldsymbol{\mathrm{a}}^{\boldsymbol{\mathrm{x}}} \boldsymbol{\mathrm{b}}^{\boldsymbol{\mathrm{z}}} \boldsymbol{\mathrm{c}}^{\boldsymbol{\mathrm{y}}} ,\boldsymbol{\mathrm{a}}^{\boldsymbol{\mathrm{y}}} \boldsymbol{\mathrm{b}}^{\boldsymbol{\mathrm{x}}}…

Question Number 158914 by amin96 last updated on 10/Nov/21 $$\underset{\mathbf{n}=0}{\sum ^{\mathrm{\infty }}}\frac{1}{{(3\mathbf{n}+1)}^3}=?$$ Terms of Service Privacy Policy Contact: info@tinkutara.com