# Is 3 ! + 4 ! = 7 ! ?

**Solution:**

Using the definition of factorial,

7! = 7×6×5×4×3×2×1 = 5040

4! = 4×3×2×1 = 24

3! = 3×2×1 = 6

Now, 3! + 4! = 6 + 24 = 30

Therefore, 3 ! + 4 ! ≠ 7 !

NCERT Solutions Class 11 Maths Chapter 7 Exercise 7.2 Question 2

## Is 3 ! + 4 ! = 7 !?

**Summary:**

Using the factorial definition, we verified that 3! + 4! is not equal to 7!