Category: Number Theory

Question Number 163763 by Rasheed.Sindhi last updated on 10/Jan/22 $$$$ Commented by Rasheed.Sindhi last updated on 10/Jan/22 $$\text{You can't use 'macro parameter character \#' in math mode}$$ Answered by Rasheed.Sindhi…

Question Number 98091 by bobhans last updated on 11/Jun/20 $$\mathrm{what}\mathrm{is}\mathrm{number}\mathrm{of}\mathrm{positive}\mathrm{integral}$$$$\mathrm{solutions}\mathrm{of}10\mathrm{xy}+7\mathrm{x}+3\mathrm{y}=2077829313$$ Answered by bemath last updated on 12/Jun/20 Terms of Service Privacy…

Question Number 32499 by 7991 last updated on 26/Mar/18 $$proof:a(-b)=(-a)b=-\left(ab\right)$$ Answered by $@ty@mlastupdatedon26/Mar/18$$Wehave:$$$\$3\times 2=6$$$$\mathrm{3}×\mathrm{1}=\mathrm{3} \…

Question Number 97823 by john santu last updated on 10/Jun/20 $$\mathrm{If}x\mathrm{and}y\mathrm{are}\mathrm{integers},\mathrm{prove}$$$$\mathrm{that}{x}^3-7x\mathrm{divisible}\mathrm{by}3$$ Commented by bobhans last updated on 10/Jun/20 $$\mathrm{let}\:{x}\:\mathrm{is}\:\mathrm{an}\:\mathrm{integer}.\:\mathrm{we}\:\mathrm{can}\:\mathrm{write} \…

Question Number 97746 by bemath last updated on 09/Jun/20 $$\mathrm{Determine}\mathrm{all}\mathrm{pairs}(\mathrm{x},\mathrm{y})$$$$\mathrm{of}\mathrm{integers}\mathrm{satisfying}1+2^{\mathrm{x}}+2^{2\mathrm{x}+1}={\mathrm{y}}^2$$ Commented by john santu last updated on 09/Jun/20…