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Number Theory
Page 4
Questions (6,269)
If N is the set of natural numbers that are factors of 20, choose the selection below that correctly shows this set in roster
7 answers
asked by
Tapia
5,525 views
For each integer n>1, let A(n) denote the sum of the integers from 1 to n. For example, A(100)=1+2+3+ +100=5,050. What is the
5 answers
asked by
Devron
2,488 views
Sam writes down the numbers 1, 2, 3,..., 999
How many digits did Sam write, in total?
5 answers
asked by
Kim
179 views
The LCM of three numbers is 7920 and their GCD is 12. Two of the numbers are 48 and 264. Using factor method determine the third
1 answer
asked by
Mary
143 views
How many times of HCF of 64 and 126 contained in their LCM?
2 answers
asked anonymously
82 views
prove that between two rational number there is an irrational
2 answers
asked by
ezile
53 views
If a number is divisible by 8, then it is divisible by 2 and 4
2 answers
asked anonymously
67 views
Prove that for all positive integers “a” and “b”, GCD(a,b) = LCM(a,b) iff a = b. Can someone explain me how to prove
2 answers
asked by
Christian
858 views
How many distinct rational numbers can be expressed in the form a/b, where a and b are integers such that 1 ≤ a < b ≤10?
1 answer
asked by
Arnau
391 views
What is the sum of the distinct prime factors of 2016?
2 answers
asked by
Anonymous
191 views
I'm an odd number, I have two factors and I'm a multiple of 10.
3 answers
asked by
Camden
285 views
What is the sum of the place value of 2 and 1 in the number 4219
4 answers
asked by
Grace
164 views
LCM of 8 and 10
1 answer
asked by
Riley
61 views
What is the greatest common factor of 75, 8, and 21
1 answer
asked by
Riley
69 views
What is the greatest common factor of 16, 27, and 20
1 answer
asked by
Riley
81 views
Which number has an absolute value greater than | -3 |
1 answer
asked by
Lexi
77 views
What is the least common multiple (LCM) of 3 and 7?
A. 10 B. 35 C. 21 D. 14 its 10 correct?
1 answer
asked by
Emo Freak
94 views
What is the simplified explanation of the Riemann hypothesis and it's important applications in mathematics and physics.
2 answers
asked by
Dave
60 views
Why is 1/0 Undefined? Does it have any implications, importance and can a function be formulated from it? What is meant by 1/0
2 answers
asked anonymously
78 views
How many different four-digit numbers can you form using the digits 1, 2, 3, 5, 6, 7, and 9 with repetition allowed?
Would the
3 answers
asked by
Lily
511 views
Which number is irrational?
3/17 √25 0.6 √33
5 answers
asked anonymously
108 views
Is 17,077 a prime number? Think step by step and then answer Yes or No
34 answers
asked anonymously
148 views
Let a = 349, M = 492186.
Show that gcd(a;M) = 1. Hence find the mutliplicative inverse, a^-1 mod M
4 answers
asked by
Dean
646 views
The value of the entry in Pascal's Triangle that is in row 15 diagonal 7 is
1 answer
asked by
Raj Sriram
235 views
Peter, I found your question interesting and have been messing with it for a while
www.jiskha.com/questions/1789041/Ethel-went-to
4 answers
asked by
Reiny
846 views
Choose the correct solution in roster form. N is the set of natural numbers that are factors of 12.
{1, 2, 3, 4, 6} {1, 2, 3, 4,
4 answers
asked by
Anonymous
1,624 views
The letter L is prime factor less than 10, if L is also a factor of 42 and 35, what is L?
2 answers
asked anonymously
85 views
I don't understand common factors. can someone show me how to find the greatest common factor of 385 and 1365?
385 = 5 x 7 x 11
3 answers
asked by
kim
672 views
For how many positive integers n are there exactly ⌊n/2⌋ or ⌈n/2⌉ primes less than or equal to n?
1 answer
asked by
Stranger
346 views
Is it the same thing :
fibonacci math and the golden mean? for one i know that this type of math deals with sequences but can
1 answer
asked by
jas20
521 views
what number from 1 to 25 has the most factors?
16 answers
asked by
Katelee
3,375 views
IM DOING A PROJECT FOR SCHOOL AND CAN"T FIND THE ANSWER....
WHY IS Pi so important?
3 answers
asked by
JESSICA
364 views
What is the first natural number that is a perfect square and a perfect cube? Can you find the second? The third? Explain.
3 answers
asked by
Jackie
609 views
Determine the least positive integer n for which the following condition holds: No matter how the elements of the set of the
3 answers
asked by
sanji
547 views
The sum of the digits of a two-digit number is 5. If 9 is subtracted from the number, the digits will be interchanged. Find the
4 answers
asked by
lila
713 views
What is the smallest perfect cube that has a factor of 4725?
Factors of 4725 are 3,3,3,5,5,7 I have 3^3 and 5^2 and 7. So I need
4 answers
asked by
samantha
1,177 views
can someone explain to me how to solve for the following:
Directions:Find the GCF of 6,18, and 30 well to get the answer you need
2 answers
asked by
Jasmine20
864 views
If a and b are positive integers, prove that;
ab = gcd(a,b)*lcm(a,b).
1 answer
asked by
romulo
580 views
are all numbers "real numbers"?
1 answer
asked by
anonymous
270 views
Find all values of the missing digit that make the statement true.
5,33_ is divisible by 11. A) 8 B) 6 C) 1 D) 5
5 answers
asked by
Annonom
958 views
Find how many positive integers with exactly four decimal digits, that is, positive integers between 1000 and 9999 inclusive,
4 answers
asked by
carlton
4,995 views
Find one rational number and one irrational number between 0.3333.... and 0.4444....
2 answers
asked by
JAC OB254
53 views
Hi
Do decimals such as 2.718 represent rational numbers or irrational numbers. Explain. Do repeating decimals such as 2.3333 . .
4 answers
asked by
Algerba II
1,966 views
A music store gives every 20th customer a $5 gift card. every 50th customer gets a $10 gift card. Which customer will be the
10 answers
asked by
Kyle
1,097 views
Problem #1
Directions: Find the GCF for 14 and 21. My answer is: 7 Problem #2 Directions: List all the prime numbers between 25
2 answers
asked by
jasmine20
520 views
62 is divisible by which of following numbers
a. 1,3,31 62 b. 1,2,3,31 c. 1,4, 16, 62 d. 1,2,1,62
63 answers
asked by
REALLY NEED HELP
7,480 views
Provide a notes on tally prime as whole
2 answers
asked by
Jr
72 views
What is the least positive integer n such that n! is divisible by 1000?
5 answers
asked by
Anonymous
124 views
The sum of the HCF and LCM of two numbers is 680 and the LCM is 84 times of the HCF.lf one number is 56 ,find the other.
2 answers
asked anonymously
121 views
what is the formula for the josephus problem
2 answers
asked by
oii
59 views
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