Divisibility + multiplication - math problems
Number of problems found: 27
Determine the smallest integer which divided 11 gives remainder 4 when divided 15 gives remainder 10 and when divided by 19 gives remainder 16.
Find all divisors of number 493. How many are them?
How many different combinations of two-digit number divisible by 4 arises from the digits 3, 5 and 7?
- No. of divisors
How many different divisors have number ??
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?
- Lcm 2
Create the smallest possible number that is divisible by numbers 5,8,9,4,3
- Count of roots
How many solutions has equation x. y = 7757 with two unknowns on the set of natural numbers?
- Prime divisors
Find 2/3 of the ratio of the sum and the product of all prime divisors of the number 120.
How many rectangles with area 8713 cm2 whose sides are natural numbers are?
Annie has a total of $ 702. The money must be divided into stacks so that each buyer has the same amounth of dollars. How many options she have?
How many odd four-digit numbers can we create from digits: 0, 3,5,6,7?
- 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?
What is the product of 26 and 5? Write the answer in Arabic numeral. Add up the digits. How many of this is in a dozen? Divide #114 by this
- Three digits number
From the numbers 1, 2, 3, 4, 5 create three-digit numbers that digits not repeat and number is divisible by 2. How many numbers are there?
Athletes standing in rows of eight. Ivan estimated that athletes are more than 120. Peter claimed that there are fewer than 130. Both are right. How many are athletes?
- Grandson and granddad
Grandson with grandpa they counted how many years have together. Their product is 365. How many years is the sum of their years.
- How many 4
How many 4 digit numbers that are divisible by 10 can be formed from the numbers 3, 5, 7, 8, 9, 0 such that no number repeats?
- Inverted nine
In the hotel,, Inverted nine" each hotel room number is divisible by 6. How many rooms we can count with three-digit number registered by digits 1,8,7,4,9?
In a circle with a diameter 50 cm are drawn 3 circles /as a snowman/ where: its diameters are integers, each larger circle diameter is 3 cm larger than the diameter of the previous circle. Determine snowman height if we wish highest snowman.