Question

Which of the following is the common factor of 5xy, 3pqr and 40 xyz? [ ]
A) 5 B) 0 C) xy D) 1

Answer 1

The common factor of 5xy, 3pqr and 40xyz is 1.

Correct option: D) 1

Tips:

Common terms: The terms which lie in all the terms, are called common terms.

To find common terms, we have to write them in terms of their factors (including the factor 1) and check for same terms.

Step-by-step explanation:

Here,

• the first term = 5xy = 1 × 5 × x × y,

• the second term = 3pqr = 1 × 3 × p × q × r

• the third term = 40xyz = 1 × 2 × 2 × 2 × 5 × x × y × z

So, from the above expressions, we see that the only common factor among the terms given is 1 and thus it is the required common factor.