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units digit

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28 articles trouvés pour ce sujet.
 
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The units digit of a square 2021-09-04
Aarzu pose la question :
Sorry this may be a dumb question but how do you find possible unit digits of a perfect square
Penny Nom lui répond.
The tens digit of a number is five times the unit digit 2016-05-19
sanjeev pose la question :
The tens digit of a number is five times the unit digit. Find the number?
Penny Nom lui répond.
The units digit of a prime 2015-01-08
Patricia pose la question :
Every prime number greater than 10 has a digit in the ones place that is included in which set of numbers below 1 3 7 9 or 1 3 7 or 0 2 4 5 6 8 or 1 3 5 9
Walter Whiteley lui répond.
Units digit 2014-01-03
gracie pose la question :
9^23 units digit
Penny Nom lui répond.
The units digit 2012-09-11
Shaunice pose la question :
Simplify each of the following expressions and determine what the last digit would be. a. (24^15) 4
Penny Nom lui répond.
The units digit of a prime number 2011-11-22
Mike pose la question :
Every prime number larger than 10 has a digit in the ones place that is included in which set of numbers below?
A. 1,3,7,9
B. 1,3,5,9
C. 0,2,4,5,6,8
D. 1,3,7

Penny Nom lui répond.
A two digit number 2011-03-01
jhoanna pose la question :
the sum of the digits of a two digit number is 10. The value of the number is 16 times the units digit.Find the number.
Penny Nom lui répond.
Units digit 2009-07-23
Jyll pose la question :
How do solve for the units digit? And that, what is the units digit of the first 1000 prime numbers?
Robert Dawson lui répond.
Units digit 2009-04-15
A student pose la question :
What is the unit digit of 47 to the 43rd power? Please answer as soon as possible. Thank you.
Stephen La Rocque lui répond.
The units digit of 2^95 2009-03-18
Sharvon pose la question :
what is the units digit of 2^95
Robert Dawson lui répond.
The units digit is 5 2009-02-02
Ray pose la question :
the number that when squared the units digit is 5
Penny Nom lui répond.
The 2 rightmost digits 2008-12-18
Peter pose la question :
Is there a pattern for the 2 rightmost digits of a power? For example, one problem for a math competition was what are the 2 rightmost digits of 3^1993?
Robert Dawson and Victoria West lui répond.
The units digit of (7*3)^21 2008-07-16
surender pose la question :
what will be the unit digit of (7*3)^21?plz give me method 2 calculate such problems.thank you.
Penny Nom lui répond.
Units digit 2008-07-02
seemachauhan pose la question :
How to find unit digit of various numbers and what are unit digits?
Penny Nom lui répond.
Units digit 2008-01-11
Robin pose la question :
hello - my question is: what is the units digit of (13) to 4; (17) to 2 and (29) to 3 [(13)4(17)2(29)3]

(possible answers: 9 or 7 or 5 or 3 or 1)

Penny Nom lui répond.
The sum of the ones 2007-10-29
Hangsun pose la question :
When 2 two digit numbers are added what is the greatest possible sum of the ones?
Penny Nom lui répond.
The units digit of 23^45 + 67^89 2007-08-16
Christopher pose la question :
What is the units digit of 23 to the 45th power plus 67 to the 89th power?
Stephen La Rocque lui répond.
The units digit of 9^2006 + 3^2006 2007-01-30
Ryan pose la question :
What is the units digit of the sum of 9^2006 and 3^2006
Penny Nom lui répond.
The units digit 2007-01-09
Tyrone pose la question :
This may be a dumb question, but what is the unit digit of two digits, eg: 62 or 13 or 45.
Steve La Rocque and Diane Hanson lui répond.
The units digit of 1^5 + 2^5 + ... + 2006^5 2006-11-14
Lana pose la question :
Compute the unit's digit of :
1 to the power of 5 + 2 to the power of 5 + 3 to the power of 5 + 4 to the power of 5 + 5 to the power of 5 + 6 to the power of 5 + ... + 2006 to the power of 5 .

Stephen La Rocque and Penny Nom lui répond.
The units digit 2006-03-05
Taran pose la question :
My teacher asked: What is the unit's digit in the product 5 X 10 X 15 X 20 X 25? What is a "unit's digit", what are they asking for?
Penny Nom lui répond.
What is the unit's digit? 2005-10-04
Alex pose la question :

Question: What is the unit's digit of the following problem?

3155 + 7412 (3 to the 155th power + 7 to the 412th power.)


Penny Nom lui répond.
n^2+n-1 has no divisors ending with 3 or 7 2005-09-08
Arne pose la question :
at least it seems like for any integers n and k,
10k+3 and 10k+7 do not divide n²+n-1
I tested this for every n from 0 to 3200 (which means same for the numbers from -3201 to -1)
could this be true, or is it just coincidence, or am I just totally wrong?

Richard McIntosh lui répond.
The last digit of a large exponent 2004-10-20
Landon pose la question :
How can one determine the last digit of a large exponent by hand. I have seen several examples of how to do this by breaking it up into smaller exponents, but is there a formula or some common things to look for?
Penny Nom lui répond.
The last digit of 2^28 2004-09-25
A student pose la question :
I am currently enrolled in a math reasoning class and a math question I have to answer is determine the units digit in 3 28power. When I set up a table and keep cubing the numbers, I find a pattern with the last digits of the numbers that follow 1,3,9,7. My calculator gets to about the 19th power, and then I get an error. If I continued the pattern, would the units digit then be the last digit of 3 28th power, which would be a 7? Please let me know if I am solving this correctly and what a unit's digit actually is.
Penny Nom lui répond.
The units digit of 57 to the 28th power 2003-09-01
Maria pose la question :

If 57 is raised to the 28th power, what must be the units digit in the result?

If you raise 7 to the 500th power, what is the numeral that will appear in the units digit position?


Penny Nom lui répond.
The units digit of 2 to the power of 31921 2002-12-18
A student pose la question :
If 2 to the power of 31921 is multiplied out, what will be the units digit?
Penny Nom lui répond.
The units digit of 3 to the 58th power 2000-05-10
Kylie Mcalpine pose la question :
the questions we have been asked are what is the units digit of the following:

a) 358
b) 2358
c) 1731

and the harder question of:

what is the units digit of the following sum: 13841 + 17508 + 24617 = ???????


Paul Betts and Penny Nom lui répond.
 
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