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The Daily Insight

What is a division problem that equals 15?

Author

Emma Johnson

Updated on April 22, 2026

3 × 5 = 15.

What is a complicated equation?

A complex equation is an equation that involves complex numbers when solving it. A complex number is a number that has both a real part and an imaginary part. It is written in this form: In the above equation, a and b both stand for numbers. For example, <4+3i> is a complex number.

What is the most difficult equation to solve?

In 2019, mathematicians finally solved a math puzzle that had stumped them for decades. It’s called a Diophantine Equation, and it’s sometimes known as the “summing of three cubes”: Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100.

What times what can equal 15?

1 x 15 = 15. 3 x 5 = 15. 5 x 3 = 15. 15 x 1 = 15.

What is an impossible math equation?

For decades, a math puzzle has stumped the smartest mathematicians in the world. x3+y3+z3=k, with k being all the numbers from one to 100, is a Diophantine equation that’s sometimes known as “summing of three cubes.” When there are two or more unknowns, as is the case here, only the integers are studied.

How do you find the factor of 15?

Factors of 15

  1. Factors of 15: 1, 3, 5 and 15.
  2. Negative Factors of 15: -1, -3, -5 and -15.
  3. Prime Factors of 15: 3, 5.
  4. Prime Factorization of 15: 3 × 5 = 3 × 5.
  5. Sum of Factors of 15: 24.

What is the most complicated equation in the universe?

So what’s the most (but not needlessly) complicated equation in the universe? Arguably, it’s the Standard Model Lagrangian, which covers the dynamics of every kind of particle and all of their interactions. Notably, it doesn’t cover gravity, but be cool. It’s a work in progress.

What are the Euler-Lagrange equations?

This is called the Euler-Lagrange equations (plural) because this is actually several equations. Each different variable (x 1 =x, x 2 =y, x 3 =z) tells you something different.

Are there any equations that are infinitely long?

There are plenty of equations that are infinitely long, but often they’re simple enough that we can write them compactly. For example, This equation goes on forever, but it’s fairly straight forward: every term you flip the sign and increase the denominator from one odd number to the next. You can write it in mathspeak as .

Is string theory the most complicated equation of all physics?

I’ve heard string theoreticians say that the equation describing the string theory, if this theory were to ever become verified, would be the most complicated equation of all physics. But in terms of what we have confirm, this equation is fascinating. The answer is 1.5123742737×10(raised to the power of 10) Good Dam.