+1e7 represents [scientific notation](/wiki/scientific_notation) for the number ten million (10,000,000). It is a concise way to express [large numbers](/wiki/large_numbers), particularly when dealing with powers of ten.
+## See also
+- [Power of Ten](/wiki/power_of_ten)
+- [Decimal](/wiki/decimal)
+- [Order of Magnitude](/wiki/order_of_magnitude)
... 1 more lines