Hello! Trace location and mobile number using a Gmail account is not possible because Gmail doesn't track the location of its users or associate their accounts with their mobile phone numbers. However, you can contact the authorities if you feel that your safety or security is at risk and they can try to trace the person's location and mobile number through legal means. It's important to keep in mind that attempting to track someone without their consent or knowledge is îllégâl and violating their privacy.