What is a factor of 10?

A factor of 10 is any number that divides into 10 exactly or evenly. These factors are 1, 2, 5, and 10. When multiplying a number by a factor of 10, the result is simply adding a zero to the end of the number. For example, 7 times 10 equals 70. Factors of 10 are commonly used in decimal system as a base, as each digit in a number is 10 times greater than the digit to its right. Additionally, factors of 10 are often used in conversions between different units of measurement, such as converting kilometers to meters or grams to milligrams.