Front cover image for Factor table for the fourth million, containing the least factor of every number not divisible by 2, 3, or 5 between, 3.000.000 and 4.000.000

Factor table for the fourth million, containing the least factor of every number not divisible by 2, 3, or 5 between, 3.000.000 and 4.000.000

Print Book, English, 1879