So the speed, flash was travelling at was - 17,500,000 / 0.00000000001 = 1750000000000000000 miles per second. So if the speed of light was 186,000 mile per second. Flash was travelling at - 1750000000000000000 / 186000 = 9400000000000 times the speed of light. Which is 9,400,000 million times the speed of light.