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what is the total number of factor of 16!
Read Solution (Total 16)
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- 16! = 2^15 * 3^6 * 5^3 * 7^2 * 11^1 * 13^1
total number of factors = (15+1)*(6+1)*(3+1)*(2+1)*(1+1)*(1+1) = 5376 - 10 years agoHelpfull: Yes(48) No(5)
- @utkarsh and jaya krishna: write 16! interms of the prime factors,
i.e 16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1
i.e 2^15* 3^12* 5^3*7^2*11^1*13^1
and total no of factors formula is powers of prime factors incremented by 1 , their product
ie (15+1)(6+1) (3+1)(2+1)(1+1)(1+1)=5376 - 10 years agoHelpfull: Yes(11) No(0)
- we need to write 16! in terms of their prime factors,
now 16!= 16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1
i.e 2^15* 3^6* 5^3*7^2*11^1*13^1
and total no of factors formula is powers of prime factors incremented by 1 and then their product
i.e. (15+1)*(6+1)*(3+1)*(2+1)*(1+1)*(1+1)=5376 - 10 years agoHelpfull: Yes(7) No(0)
- 16/2=8
8/2=4
4/2=2
2/2=1
The no of factors are 8+4+2+1=15 - 10 years agoHelpfull: Yes(5) No(9)
- 16!=16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1
go for prime nos... which are 2,3,5,7,11,13
Now power concerns ...
power of 2 ...
16/2=8
8/2=4
4/2=2
2/2=1 ....sum 8+4+2+1=15 similarly for the rest one
16!=2^15* 3^12* 5^3*7^2*11^1*13^1
Total number of factors = (15+1)*(6+1)*(3+1)*(2+1)*(1+1)*(1+1) = 5376
I hope this gonna help u
- 10 years agoHelpfull: Yes(5) No(0)
- Ans:5376
(2^15)*(3^6)*(5^3)*(7^2)*11*13
(15+1)*(6+1)*(3+1)*(2+1)*(1+1)*(1+1)=16*7*4*3*2*2=5376 - 10 years agoHelpfull: Yes(3) No(0)
- i.e 16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1
so (2^15)*(3^6)*(5^3)*(7^2)*11*13
(15+1)*(6+1)*(3+1)*(2+1)*(1+1)*(1+1)=16*7*4*3*2*2=5376 - 10 years agoHelpfull: Yes(2) No(0)
- how 15,6,3,2,1,1 came
- 10 years agoHelpfull: Yes(2) No(0)
- how you take 2^15 expression @rakesh
- 10 years agoHelpfull: Yes(1) No(0)
- there are 5 factors for 16 and they are 1,2,4,8,16
- 10 years agoHelpfull: Yes(1) No(5)
- no of factors=27
- 10 years agoHelpfull: Yes(1) No(2)
- total number of factors is the total number of prime numbers between 1 and 16
1,2,3,5,7,11,13
ans 7 - 10 years agoHelpfull: Yes(1) No(3)
- 7 ,,,,,,,,,,,,,,,,,,,,,,,,,,,bcoz 1 ,2, 3 ,5 and prime no.'s 7,11 and 13 are the factors of 16factorial
- 10 years agoHelpfull: Yes(0) No(3)
- not geting clearly,plz. explain me how to do this kind of problems..
- 10 years agoHelpfull: Yes(0) No(0)
- it can be written as
(((10*10*10)/(12*12*12))+((9*9*9)/(12*12*12)))^1000
now
10/12=remainder is -2
9/12=remainder is -3
then,
we can write
((-2*-2*-2)+(-3*-3*-3))^1000
=(-35)^1000
which means 1^1000
so the remainder is 1 - 10 years agoHelpfull: Yes(0) No(0)
- 16=2*2*2*2*2
16/2+16/4+16/8+16/16=15
no of factors=15+1=16 - 9 years agoHelpfull: Yes(0) No(0)
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