Maggi Ajjayya, Kottur’s “Computer Man,” amazes social media with lightning-fast mental math. Despite only studying till 8th grade and surviving by begging, his calculation tricks have gone viral.

What's 869,463,853 times 73? While the average person would still be reaching for their calculator, 20-year-old Neelakantha Bhanu Prakash already has the answer. Other WRAL Top Stories It's 63,470,861 ...