There are n different positive integers, each one not greater than 2020, with the property that the sum of any three of them is divisible by 39. Find the greatest possible value of n?
When a whole number N is multipled by 7, the last three digits of the product is 173. Find the smallest possible value of N?
there are four kids .if we compute the total age of three of them at a time ,the sum are 22,20,17,25.what is the different of age between the oldest and the youngest among these four kids
Find the natural number so that the product of and 5 is a prime number.
find the maximum number of student's Ms Linh such that she can give them a total of 27 candies and the number Of candy her students recieve are consecutive positive inegers
There are three different natural numbers. Their sum is 1267 . When the greatest common divisor of these is the largest. Find three numbers
Find the number of elements is the divisor of 252
Câu 1:
A is a set of multiples of 12 less than 12. How many elements does the set A have?
Answer: The set A has element(s)
Câu 2:
Find the remainder when is divided by 9.
Answer: The remainder is
Câu 3:
Find the remainder of when it is divided by 3.
Answer: The remainder is
Câu 4:
A is the set of factor of 12 more than 6. How many elements does the set A have?
Answer: The set A has element(s)
Câu 5:
Find the natural number so that the product of and 5 is a prime number.
Answer:
Câu 6:
Given that . How many divisors does the number A have?
Answer: The number A has divisors.
Câu 7:
Given that . How many divisors does the number A have?
Answer: The number A has divisors.
Câu 8:
How many prime numbers less than 10 are there?
Answer: There are numbers.
Câu 9:
Find the greatest 2-digit number that has 12 divisors.
Answer: It is
Câu 10:
Among all natural number pairs satisfy , one pair has the greatest product. What is this product?
Answer: The greatest product is