If the ones digit of a number greater thab 1 is 0 factor or factors must that number have?
When the ones digit of a number is 0, it means that number is divisible by 10. It's important to note that any number ending in 0 is divisible by 10.
To find the factors of a number, we need to determine all the numbers that divide it evenly. In the case of a number that ends in 0, its factors are always 1, 2, 5, and 10.
To understand why, let's consider the number 20, for example. Its factors are 1, 2, 4, 5, 10, and 20. The ones digit is 0, so it is divisible by 10. It is also divisible by 1 (every number is divisible by 1), 2 (half of 20), 4 (since the last two digits 20 evenly divides by 4), 5 (the ones digit is 0), and of course by 20 itself.
Therefore, any number with a ones digit of 0 has at least the factors 1, 2, 5, and 10.