What are two pairs of numbers of 105 as their least common factor ?

I usually can solve it, but your question doesn't make since! Sorry!

To determine two pairs of numbers that have 105 as their least common factor, we need to find numbers that are divisible by 105.

The prime factorization of 105 is 3 * 5 * 7.

To find the pairs, we can choose two numbers, one from each pair, such that they both have 3 and 5 as factors, or 3 and 7 as factors, or 5 and 7 as factors.

For example, let's start with the pairs having 3 and 5 as factors. We can choose any number that is divisible by both 3 and 5. Such numbers include 15, 30, 45, 60, and so on.

So, one pair of numbers with 105 as their least common factor is (15, 105) and another pair is (30, 105).

Now, let's find the pairs with 3 and 7 as factors. The numbers that are divisible by both 3 and 7 include 21, 42, 63, and so on.

Therefore, one pair with 105 as their least common factor is (21, 105) and another pair is (42, 105).

In summary, the two pairs of numbers with 105 as their least common factor are: (15, 105) and (21, 105), as well as (30, 105) and (42, 105).

105 cannot be their least common factor, as it has its own smaller factors.

Though I think the question has been garbled, since I cannot understand

"two pairs of numbers of 105"

i do not understand