MO C–I–1 2018
An unknown number is divisible by just four numbers from the set {6, 15, 20, 21, 70}. Determine which ones.
Final Answer:
Tips for related online calculators
Do you want to calculate the least common multiple of two or more numbers?
Do you want to calculate the greatest common divisor of two or more numbers?
Do you want to calculate the greatest common divisor of two or more numbers?
You need to know the following knowledge to solve this word math problem:
algebrabasic operations and conceptsnumbersthemes, topics
Related math problems and questions:
- Unknown number
An unknown number is divisible by exactly three different primes. When we compare these primes in ascending order, the following applies: • The difference between the first and second prime numbers is half the difference between the third and second prime - Divisible by three
What least value must be assigned to the unknown x so that the number 789x563 is divisible by 3? - Find unknown number
What is the number between 50 and 55 that is divisible by 2,3,6,9? - Three-digit divisible nine
Determine the number of all-natural three-digit numbers divisible by 9, consisting of the numbers 0, 1, 2, 5, 7: - Equation - words
Determine the unknown number for which it applies: whose four times increased by the number 3 equals its double. - Card number probability
On ten identical cards, there are numbers from zero to nine. Determine the probability that a two-digit number randomly drawn from the given cards is: a) even b) divisible by six c) divisible by twenty-one - Number puzzle
Darius said to Miloš: I think a number. If I square it to one-fourth and then multiply it by 3, I get its square root. Find the unknown number that is greater than zero and belongs to the set of positive integers.
