Natural numbers + divisibility - math problems
Number of problems found: 122
- Divisibility 2
How many divisors has integer number 13?
Determine all divisors of number 84.
- Sum of the digits
How many are two-digit natural numbers that have the sum of the digits 9?
How many three-digit natural numbers are divisible by 25?
- Three-digit integers
How many three-digit natural numbers exist that do not contain zero and are divisible by five?
- Count of roots
How many solutions has equation x. y = 7757 with two unknowns on the set of natural numbers?
- Divisible by nine
How many three-digit natural numbers in total are divisible without a remainder by the number 9?
- Primes 2
Which prime numbers is number 2025 divisible?
How many rectangles with area 8713 cm2 whose sides are natural numbers are?
- Year 2018
The product of the three positive numbers is 2018. What are the numbers?
- Theorem prove
We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
- Seven numbers
Write seven 4-digit numbers that are divisible by 3 and at the same time by 4.
- Common divisors
Find all common divisors of numbers 30 and 45.
- Reminder and quotient
There are given the number C = 281, D = 201. Find the highest natural number S so that the C:S, D:S are with the remainder of 1,
- Sum of odd numbers
Find the sum of all odd integers from 13 to 781.
- Odd numbers
The sum of four consecutive odd numbers is 1048. Find those numbers ...
Determine the smallest integer which divided 11 gives remainder 4 when divided 15 gives remainder 10 and when divided by 19 gives remainder 16.
- The sum
The sum of five consecutive odd numbers is 75. Find out the sum of the second and fourth of them.
- How many
How many numbers are less than 222 with a digit sum is 8?
Find all divisors of number 493. How many are them?
Natural numbers - math word problems. Divisibility - math word problems.