Question

78*964 may be divisible by 9

Answer 1

$\textbf{To find:}$

$\mathsf{78{\times}964\;is\;divisible\;by\;9\;or\;not}$

$\textbf{Solution:}$

$\mathsf{Consider,}$

$\mathsf{78{\times}964}$

$\textsf{It can be written as}$

$\mathsf{=2{\times}39{\times}2{\times}482}$

$\mathsf{=2{\times}39{\times}2{\times}2{\times}241}$

$\mathsf{=8{\times}39{\times}241}$

$\textsf{Since both 39 and 241 are prime numbers,}$

$\mathsf{78{\times}964\;is\;not\;a\;multiple\;of\;9}$

$\mathsf{Hence,\;78{\times}964\;is\;not\;divisible\;by\;9}$

$\textbf{Find more:}$

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