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How many natural numbers can be represented as sum of cubes of two natural numbers in two different ways?
Wiki User
∙ 13y ago
Probably infinite. The smallest is known as Ramanujan's number, 1729 using cubes of 1 and 12, and of 9 and10. Read more about the genius Ramanujan in Wikipaedia.
Wiki User
∙ 13y ago
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How many natural numbers up to 5000 are perfect cubes?
The cube root of 5000 is approx 17.1 So the numbers 1 to 17 have cubes which are smaller than 5000 that is, there are 17 such numbers.
What is the specialty of the number 1729 and what is the special name for it according to maths?
1729 is the smallest natural number that can be expressed as a sum of two cubes of positive number in two different ways: 1729 = 13 + 123 = 93 + 103 It is known as the Ramanujan-Hardy number. But is also known as a Taxicab number which are numbers that can be expressed as sums ot 2 cubes in 2, 3, 4, etc different ways.
If the difference of two positive numbers is 1 the product of these same two number is also 1 What is the difference of the cubes of these two numbers?
The difference of their cubes is 4.
What is the smallest number whose factors are cubes of two different prime numbers?
2 and 3 are the smallest prime numbers. So answer is 2^3 * 3^3 = 216
How many numbers are on a regular number cubes?
6
Is the cube root of 30 rational or irrational?
Cubes of all numbers are irrational numbers, if they're not natural
How many natural numbers up to 5000 are perfect cubes?
The cube root of 5000 is approx 17.1 So the numbers 1 to 17 have cubes which are smaller than 5000 that is, there are 17 such numbers.
Why are some of the cubes rational and irrational?
The cubes of all rational numbers will be rational. But the cubes of irrational numbers can be either.
What is the base unit in math represented by?
multi cubes
Perfect numbers between 20 and 30?
there are no perfect numbers instead there are perfect cubes, perfect squares, natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. If you want natural no. they are 21, 22, 23, 24, 25, 26, 27, 28, and 29.
What natural numbers less than 100 are both perfect squares and perfect cubes?
64 is the square of 8 and the cube of 4.
What is the logic behind the number sequence 1 8 27 64 125 216?
They are the cubes of the natural numbers, starting with 1.
What is the probability of rolling two number cubes simultaneously and getting different numbers?
The probability is 5/6.
What is the sum of the cubes of first 100 whole numbers?
The sum of the cubes of the first 100 whole numbers is 25,502,500.
What is the specialty of the number 1729 and what is the special name for it according to maths?
1729 is the smallest natural number that can be expressed as a sum of two cubes of positive number in two different ways: 1729 = 13 + 123 = 93 + 103 It is known as the Ramanujan-Hardy number. But is also known as a Taxicab number which are numbers that can be expressed as sums ot 2 cubes in 2, 3, 4, etc different ways.
What are two cubic numbers are palindromes?
All one digit numbers are palindromes.Cubic numbers are generally understood to be cubes of integers. So the numbers, 1 and 8 are both palindromic cubes.
What is a term for cubed numbers?
Perfect cubes.
