# Natural numbers - examples

- My father

My father has a big farm. 6/8 of it were planted with mango trees, 1/2 of the remainder are guava trees and the rest 10 trees are santol trees. What is the number of all trees? - Factors 2

A number has 3 identical factors. If 1 of them is 18. Find the number step by step - To improve

To improve her handwriting Paula practices writing the numbers 1 to 200 in words. How many times will she have written the word "one" in all? - Counting number

What is the smallest counting number divisible by 2,5,7,8 and 15? - Sum of two primes

Christian Goldbach, a mathematician, found out that every even number greater than 2 can be expressed as a sum of two prime numbers. Write or express 2018 as a sum of two prime numbers. - 7 digit number

If 3c54d10 is divisible by 330, what is the sum of c and d? - Brick

One brick is 6 kg and half a brick heavy. What is the weight of one brick? - Chocolate

Ricky bought 9 same chocolates for 9 Eur. How many euros he pay for 26 chocolates? - Divisibility

Is the number 146025 divisible by 6? - Monkey

Monkey fell in 32 m deep well. Every day her scramble 3 meters, at night dropped back by 2 m. On that day it gets hangover from the well? - Diophantus

We know little about this Greek mathematician from Alexandria, except that he lived around 3rd century A.D. Thanks to an admirer of his, who described his life by means of an algebraic riddle, we know at least something about his life. Diophantus's youth l - Z9-I-4

Kate thought a five-digit integer. She wrote the sum of this number and its half at the first line to the workbook. On the second line wrote a total of this number and its one fifth. On the third row she wrote a sum of this number and its one nines. Fi - No. of divisors

How many different divisors has number ?? - Textbooks

After check of textbooks found that every 10-th textbook should be withdrawn. Together 58 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn? - Numbers

Determine the number of all positive integers less than 4183444 if each is divisible by 29, 7, 17. What is its sum? - Steps

How many steps you save if you go square estate for diagonal (crosswise), rather than circumvent on the two sides of its perimeter with 307 steps. - Weeks

33 weeks is equal to how many days? - Z9–I–1

In all nine fields of given shape to be filled natural numbers so that: • each of the numbers 2, 4, 6 and 8 is used at least once, • four of the inner square boxes containing the products of the numbers of adjacent cells of the outer square, • in the cir - Cherries

Cherries in the bowl can be divided equally among 8 or 10 or 11 children. How many is the minimum cherries in the bowl? - Camp

In the camp are children. 1/2 went on a trip, 1/4 went to bathe and 58 children remained in the room. How many children are in camp?

Do you have interesting mathematical example that you can't solve it? Enter it and we can try to solve it.