cceptable <span class="nowrap">R<sub>2</sub></span> is found.</p><p>Let <span class="nowrap">g = gcd(60Ta,U)</span>, <span class="nowrap">v = 60Ta/g</span>, <span class="nowrap">u = U/g</span>, <span class="nowrap">S<sub>3</sub> = (R<sub>2</sub> - TR<sub>0</sub> - 60TM)/g</span>，then<br><span class="nowrap">vk - ub = S<sub>3</sub></span>&nbsp;&rArr;&nbsp;<span class="nowrap">vk &equiv; S<sub>3</sub> (mod u)</span>.</p><p>To find k, we can find the modular multiplicative inverse of v using the extended Euc