Divisibility - practice problems
Number of problems found: 419
- The remainder 3
The remainder is 31 when dividing a number by 45. What would the remainder be if the same number were divided by 15?
- 4th digit
Write a digit in place of X so that 85X634 is divisible by 11.
- The remainder
Find the remainder if 17²00 is divided by 18.
- Tailors
Find the largest number of tailors who can share either 48m or 12m of fabric equally without a reminder?
- Factorial divisible by 75
Find the least positive integer n such that n! is divisible by 75.
- Consecutive odd numbers
Find three consecutive odd numbers whose sum is 93.
- Add five to lcm
The least number, which, when diminished by 5, is divisible by each of 21, 28, 36, and 45.
- LCM and HCF 2
If the product of two numbers is 5780 and their HCF is 17, then what is their LCM?
- Remainder one
Find the least number when divided by 2,3,4,5,6, and 7, leaving the remainder as 1 in each case.
- Divisible by three
What least value must be assigned to the blank space so that the number 789563 is divisible by 3
- Arithmetic progressions.
Find the sum of all the numbers between 9 and 204, which is exactly divisible by 3.
- Relay teams
There are 159 students to be grouped into relay teams. Each team should have the same number of students. Can each team have 3,5 or 6 students? Explain.
- A number 8
A number K is such that when it is divided by 27, 30, or 45, the remainder is 3. Find the smallest possible value of K
- Same remainder
Find the greatest number that will divide 43, 91, and 183 so as to leave the same the remainder in each case.
- Two pieces 2
Two pieces of length 12/5 m and 23/9 m are cut from a rope of length 13 m. Find the length of the remaining rope.
- Unknown number 35
I am a number between 121 and 149. I can be divided by both 3 and 5. What number am I?
- Factorization 84100
Write how many twos are in the prime factorization of the number 2024.
- Wardrobe code
Lucia has a lock on her wardrobe that opens with a 4-digit code (such as 0000, 0089, or 9123). Lucia forgot her code. But she knows that the sum of all four digits of her code is 4. How many such codes are there?
- Composition 83241
You have to create as many identical candy boxes as possible from 280 orris, 252 nougat, and 420 marzipan candies. At the same time, you must not have any candy left or missing. What will be the composition of one box of chocolates, and how many candies w
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