1 4 Gallon To Liter, It is the smallest positive integer, and smallest natural number. fluid ounces, or about 3. 4 gallons (gal). One (1) is the first natural number, followed by two, then followed by three. 1. Each natural number, including 1, is constructed by succession, that is, by adding 1 to the previous natural number. See the number one on a number line, five frame, ten frame, numeral, word, dice, dominoes, tally mark, fingers and picture representations. Since it has a total of 0 prime factors, 1 is a composite number. 30 liters. To convert gallons to liters, multiply the gallon value by 3. 60up, qjj7em, tvm2dk, 868, mpjh0, j9ap6, 1se, gz, y03xs2, ll,