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Ok buddy add this code to your functions.php

//Will use this function as conditional statement to show or hide our pagination... 
function if_show_posts_nav() {
global $wp_query;
return ( $wp_query->max_num_pages > 1 );
}


//This function is responsible for creating numbered navigation
function my_numbered_nav() {
global $wp_query;

/*We need this here to add numbered Pagination used in paginate_links function  
SEE: https://codex.wordpress.org/Function_Reference/paginate_links
*/
 if ( get_query_var( 'paged' ) ) {
    $paged = absint( get_query_var( 'paged' ) );
    } elseif ( get_query_var( 'page' ) ) {
    $paged = absint( get_query_var( 'page' ) );
    } else {
    $paged = 1;
    }

    //structure of "format" depends on whether we're using pretty permalinks
    if ( get_option('permalink_structure') ) {
    $format = '?paged=%#%';
    } else {
    $format = 'page/%#%/';
    }
    $big = 999999999; // need an unlikely integer
    $base = $format =='?paged=%#%' ? $base = str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ) : $base = esc_url( @add_query_arg('paged','%#%') );

    echo paginate_links( array(
    'base' => $base,
    'format' => $format,
    'current' => max( 1, $paged ),
    'total' => $wp_query->max_num_pages,
    'prev_text' => esc_html__( '‹ Prev', 'domain' ),
    'next_text' => esc_html__( 'Next ›', 'domain' ),
    'end_size'  => 1,
    'mid_size'  => 1,
    ) );
}

Then use it like so:

    <?php if ( if_show_posts_nav() ) : ?>
    <div class="navigation">
    <?php my_numbered_nav();?>
    </div><!--/navigation-->
    <?php endif; ?><!--/if_show_posts_nav-->