## Billion | ## more ... |

Usually means a thousand millions. 1,000 x 1,000,000 = 1,000,000,000 Written as a 1 followed by 9 zeros. Or using scientific notation as: 1 × 10 ^{9}In some countries such as the UK it can mean a million million 1,000,000 x 1,000,000 = 1,000,000,000,000 (A 1 followed by 12 zeros, or 1 × 10 ^{12}) |