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Factorial of 25 is 15511210043330985984000000 | What is a factorial of 25 ?
How to calculate the factorial of 25
Lets check the detailed answer
25! is exactly: 15511210043330985984000000
The number of trailing zeros in 25! is 6.
The number of digits in 25 factorial is 26.
The factorial of 25 is 15511210043330985984000000 calculated, through its definition, this way:
25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1What is factorial of 25?
Definition of factorial of 25
The factorial is a basically a quantity which is defined for integer value 25 which is greater than or equal to 0.
The factorial is nothing but the product of all intergers which is less than or equal to n but it is greater than or equal to 1. By definition we can say that the factorial value of 0 is equal to 1. We can not have negative integers factorial as defined. We can see that factorial is the result of multiplying a sequence of descending natural numbers. We can say that factorial of 25 is calculated as 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
Factorial Formula for 25
For 25 is natural number which is greater than or equal to 1. Then we can have the formula as
25! = 25 x (25-1) X (25-2) X (25-3) X (25-4) X (25-5) X (25-6) X (25-7) X (25-8) X (25-9) X (25-10) X (25-11) X (25-12) X (25-13) X (25-14) X (25-15) X (25-16) X (25-17) X (25-18) X (25-19) X (25-20) X (25-21) X (25-22) X (25-23) X (25-24) X (25-25) ..... 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
Simalar Questions asked in exam for factorial of 25 :-
- Check How many digits are there in 25 factorial?
- What is the factorial of 25?
- How many trailing zeros are in 25 factorial?
- What is the last digits of factorial of 25?
Table for factorial of 1 to 25
| # | Factorial of | Factorial is |
|---|---|---|
| 1 | 1 | 1 |
| 2 | 2 | 2 |
| 3 | 3 | 6 |
| 4 | 4 | 24 |
| 5 | 5 | 120 |
| 6 | 6 | 720 |
| 7 | 7 | 5040 |
| 8 | 8 | 40320 |
| 9 | 9 | 362880 |
| 10 | 10 | 3628800 |
| 11 | 11 | 39916800 |
| 12 | 12 | 479001600 |
| 13 | 13 | 6227020800 |
| 14 | 14 | 87178291200 |
| 15 | 15 | 1307674368000 |
| 16 | 16 | 20922789888000 |
| 17 | 17 | 355687428096000 |
| 18 | 18 | 6402373705728000 |
| 19 | 19 | 121645100408832000 |
| 20 | 20 | 2432902008176640000 |
| 21 | 21 | 51090942171709440000 |
| 22 | 22 | 1124000727777607680000 |
| 23 | 23 | 25852016738884976640000 |
| 24 | 24 | 620448401733239439360000 |
| 25 | 25 | 15511210043330985984000000 |
Factorial examples
Example 1:-
What is the factorial of 26?Solution :-
We know that factorial formula for 26 is26! = 26 × (26-1) X (26-2) X (26-3) X (26-4) X (26-5) X (26-6) X (26-7) X (26-8) X (26-9) X (26-10) X (26-11) X (26-12) X (26-13) X (26-14) X (26-15) X (26-16) X (26-17) X (26-18) X (26-19) X (26-20) X (26-21) X (26-22) X (26-23) X (26-24) X (26-25) X (26-26) ..... 26 X 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
So the factorial of 26 is
26! = 26 X (26-1) X (26-2) X (26-3) X (26-4) X (26-5) X (26-6) X (26-7) X (26-8) X (26-9) X (26-10) X (26-11) X (26-12) X (26-13) X (26-14) X (26-15) X (26-16) X (26-17) X (26-18) X (26-19) X (26-20) X (26-21) X (26-22) X (26-23) X (26-24) X (26-25) X (26-26)
26! = 26 X 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
26! = 403291461126605635584000000
Example 2:-
What is the factorial of 27?Solution :-
We know that factorial formula for 26 is27! = 27 × (27-1) X (27-2) X (27-3) X (27-4) X (27-5) X (27-6) X (27-7) X (27-8) X (27-9) X (27-10) X (27-11) X (27-12) X (27-13) X (27-14) X (27-15) X (27-16) X (27-17) X (27-18) X (27-19) X (27-20) X (27-21) X (27-22) X (27-23) X (27-24) X (27-25) X (27-26) X (27-27) ..... 27 X 26 X 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
So the factorial of 27 is
27! = 27 X (27-1) X (27-2) X (27-3) X (27-4) X (27-5) X (27-6) X (27-7) X (27-8) X (27-9) X (27-10) X (27-11) X (27-12) X (27-13) X (27-14) X (27-15) X (27-16) X (27-17) X (27-18) X (27-19) X (27-20) X (27-21) X (27-22) X (27-23) X (27-24) X (27-25) X (27-26) X (27-27)
27! = 27 X 26 X 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
27! = 10888869450418352160768000000
Example 3:-
What is the factorial of 28?Solution :-
We know that factorial formula for 28 is28! = 28 × (28-1) X (28-2) X (28-3) X (28-4) X (28-5) X (28-6) X (28-7) X (28-8) X (28-9) X (28-10) X (28-11) X (28-12) X (28-13) X (28-14) X (28-15) X (28-16) X (28-17) X (28-18) X (28-19) X (28-20) X (28-21) X (28-22) X (28-23) X (28-24) X (28-25) X (28-26) X (28-27) X (28-28) ..... 28 X 27 X 26 X 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
So the factorial of 28 is
28! = 28 X (28-1) X (28-2) X (28-3) X (28-4) X (28-5) X (28-6) X (28-7) X (28-8) X (28-9) X (28-10) X (28-11) X (28-12) X (28-13) X (28-14) X (28-15) X (28-16) X (28-17) X (28-18) X (28-19) X (28-20) X (28-21) X (28-22) X (28-23) X (28-24) X (28-25) X (28-26) X (28-27) X (28-28)
28! = 28 X 27 X 26 X 25 X 24 X 23 X 22 X 21 X 20 X 19 X 18 X 17 X 16 X 15 X 14 X 13 X 12 X 11 X 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
28! = 304888344611713860501504000000
Frequently Asked Questions(FAQ) for Factorial
What is the factorial of 25?
Click here for detailed step by step calculation for factorial of 25.
Check How many digits are there in 25 factorial?
The number of number of digits in 25 factorial is 26.
What is the meaning of 25 factorial?
What is the symbol of factorial?
The symbol for factorial is ! (exclamation mark).
What is the factorial of 0?
The value of factorial of 0 is 1, i.e. 0! = 1.
What is the factorial of 24?
The value of factorial of 24 is 620448401733239439360000.
What is the factorial of 28?
The value of factorial of 28 is 304888344611713860501504000000.
What is the factorial of 27?
The value of factorial of 27 is 10888869450418352160768000000.