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Number Theory
Page 2
Questions (6,289)
How many integers $m$ are there such that $0<m<100$ and $\gcd(m,100)$ is a single-digit number?
13 answers
asked by
Joy F
3,437 views
how many two-digit primes have a ones digit of 1????????????????????
got no clue
7 answers
asked by
amad
4,208 views
Given a four digit number XXXX, are there more permutations if repetition is allowed or not allowed?
5 answers
asked by
Anonymous
2,353 views
what is the positive difference between the two largest prime factors of 159,137?
4 answers
asked by
shauna
1,021 views
The difference between the two digits of a two digit number is 2. If the digits swap places,the number is 18 less than the
5 answers
asked by
Lara
1,691 views
What are the last two digits of 5 to the power of 347?
4 answers
asked by
Blank
1,899 views
What is the sum of the unique prime factors of 9991?
12 answers
asked by
GJ
2,539 views
Which statement is true about 35 and 34?
4 answers
asked by
Kendell
1,523 views
Show that each number is a rational number by writing it as the quotient of two integers.
1. 37 2. -3 1/5 3. 9.2 4. -0.23
3 answers
asked by
Evelyn
1,674 views
What is the HCF / GCF of 120, 180 and 190
in prime factorisation method
4 answers
asked by
Manasvi
1,217 views
A magic square is a square of numbers with each row, column, and diagonal of the square adding up to the same sum, called the
2 answers
asked by
Michelle
636 views
Develop An Algorithm And Draw the Flowcharts To Find the Sum of Odd Numbers Between 100 And 200
5 answers
asked by
Anonymous
8,715 views
Suppose n is an integer. Select all statements below that are true: (choose 3)
A) n^2 + n is always an even integer*** B) n^2 + n
10 answers
asked by
Gerard Way
12,039 views
Both the end digits of a 999 digit number N is 3 and N is divisible by 11, then find all the middle digits.
4 answers
asked by
Kaur
520 views
i am a number between 60 and 100. my ones digit is two less than my tens digit. i am a prime number. what number am i? explain.
37 answers
asked by
taylor
11,590 views
Write all possible 3-digit numbers sum of whose digits is 12
5 answers
asked by
Misthi
1,852 views
what are the common factors of 120 and 420
4 answers
asked by
Anonymous
1,379 views
A three digit number is such that twice the hundreds digit is more the teens digit by two.The unit digit is thrice the hundreds
4 answers
asked by
Peter
1,527 views
The only perfect number of the form x^n + y^n
5 answers
asked by
l
988 views
What is the smallest number that can round to 2,000,000 when rounded to the nearest 10,000
9 answers
asked by
Ciara
3,078 views
True or False : 81/ 88 is an irrational number.
59 answers
asked by
Willybear
986 views
What is the greatest prime factor of 3105?
4 answers
asked by
francis
1,384 views
The HCF and LCM of two numbers are 8 and 504 respectively.If one of the numbers is 56,find the smallest value of the other
3 answers
asked by
Kin shing
896 views
What is the smallest positive integer by which 180 should be multiplied to obtain a perfect square? Thank you
4 answers
asked by
PLEASE HELP
654 views
the number 23 is an irrational number because the square root of 23 is 4.795831523... Explain why this is not a true statement?
4 answers
asked by
skskskskandioop
1,558 views
The HCF of 2 no is 70. Their product is 49000. What is the difference between the 2 numbers.
3 answers
asked by
roochira
2,414 views
defineInterpreting Irrational answers for time and money
1 answer
asked by
Disiirl
62 views
1.Which of the following are infinite?
2 points the rational numbers greater than 6 the number of grams in one kg the number of
3 answers
asked by
PurPur
43 views
there are two prime numbers between 100 and 199 such that the ten digits is a prime number, the ones digit is a prime number and
5 answers
asked by
alya
1,930 views
Is 14/3 a rational number? I think so... but I'm confused because if you divide 14 by 3 then the decimal part is
7 answers
asked by
LILY
2,919 views
The product of two consecutive positive integers is added to the larger of the two integers. Prove that the result is always a
6 answers
asked by
Anonymous
3,882 views
What is the sum of the place value of 2 and 1 in the number 4219
4 answers
asked by
Grace
174 views
From set of 20 natural no.s 2 are selected.
find probability that their sum is 1.odd 2.even 3.selected pair is twin prime
5 answers
asked by
Edward
1,519 views
the greatest number rounded to the hundred as 300
3 answers
asked by
isabel
117 views
What is the smallest number that can be divided exactly by 3 5 and 7
7 answers
asked by
Dara
93 views
the boys of a school can be arranged in 12, 15, 18 equal rows and also into a solid square. what is the least number of boys
10 answers
asked by
tanzil
9,800 views
GCF of 2 natural numbers is 3 and their LCM is 180 if one of the numbers is 45 then find second number
7 answers
asked by
Anonymous
11,750 views
find the largest number of four digits which is exactly divisible by 18 25 and 35
6 answers
asked by
Ali
1,476 views
John chooses a 5-digit positive integer and deletes one of its digits to make a 4-digit number. The sum of this 4-digit number
10 answers
asked by
Amitabha
4,375 views
find the least whole number by which 2^5x5^4x7^3 must be multiplied with to get a perfect cube. what is the cube root of the
5 answers
asked by
me
1,429 views
The sum of 11 consecutive positive integers is 2002. What is the greatest of these 11 integers?
*********************************
5 answers
asked by
Please Help w/ Math
4,357 views
What is the HCF / GCF of 120, 180 and 190
in prime factorisation method
2 answers
asked by
Ganesh
612 views
How many positive three-digit integers with each digit greater than 4 are divisible by 6??
6 answers
asked by
Zach Bringer
3,648 views
1.what is the least number of terms of the GP.2,4, 8.....that will give a sum greater than 1500000 2.Aball allowed to drop from
4 answers
asked by
keneth
1,480 views
If m and p are positive integers and (m + p)x m is even, which of the following must be true? Would it be: (A) if m is odd, then
4 answers
asked by
Carol Kelly
1,770 views
What is the greatest prime number you must consider to test whether 5141 is prime?
5 answers
asked by
timothy
7,397 views
Solve the mathematical puzzle.
Determine the digits of Z from these clues. The fourth digit of Z is the largest prime factor of
4 answers
asked by
beyonce
1,549 views
Is square root of 16/4 an irrational number
4 answers
asked by
Bob
995 views
The odometer on a car shows 26962 km. Notice that this number is a palindrome. After the car has travelled two hours at a
6 answers
asked by
Sandy
3,323 views
Which numbers are the first 15 composite natural numbers as products of their prime factors
4 answers
asked by
Anonymous
1,030 views
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