# What is the hardest math question ever?

## What is the hardest math question ever?

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Today’s mathematicians would probably agree that the Riemann Hypothesis is the most significant open problem in all of math. It’s one of the seven Millennium Prize Problems, with $1 million reward for its solution.

**What is the hardest math problem in the world with an answer?**

But those itching for their Good Will Hunting moment, the Guinness Book of Records puts Goldbach’s Conjecture as the current longest-standing maths problem, which has been around for 257 years. It states that every even number is the sum of two prime numbers: for example, 53 + 47 = 100.

### Where can I get maths answers?

Which app is best for math solution?

- Photomath. Photomath is probably the best app for solving mathematical problems.
- iMathematics. iMathematics lets you type in equations and solves them for you.
- MyScript Calculator.
- PCalc.
- Graphing Calculator.
- Khan Academy.
- Meritnation.
- Mathematicus.

**What are the 6 unsolved math problems?**

The problems consist of the Riemann hypothesis, Poincaré conjecture, Hodge conjecture, Swinnerton-Dyer Conjecture, solution of the Navier-Stokes equations, formulation of Yang-Mills theory, and determination of whether NP-problems are actually P-problems.

#### What is the most impossible math equation?

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 is the easiest math problem?**

The Collatz Conjecture is the simplest math problem no one can solve — it is easy enough for almost anyone to understand but notoriously difficult to solve.

## What maths should a 11 year old know?

Children are working to extend their knowledge of whole numbers, fractions and decimals and this is the main focus for numeracy development at this stage. 11-12 year olds are placing decimals and fractions on number lines and have been introduced to the concept of positive and negative numbers.

**How to calculate the number of half lives?**

Answer: Calculate the number of half-lives; 0.003 seconds x 1 half-life = 3 half-lives 0.001 second • After 0 half-lives, 10 g ar6 left. After 1 half-life, 5 g’are left. After 2 half-lives, 2.5 g are left.

### What are the half lives of X and Y?

Two radioactive sources X and Y have half-lives of 3.0 hours and 2.0 hours, respectively. The product of the decay is a stable isotope of the element Z. Six hours ago a mixture contained the same n…

**What are the half life problems of PD-100?**

Half-Life Problems #1 – 10. (1/2) 3 = 0.125 (the amount remaining after 3 half-lives) 100.0 g x 0.125 = 12.5 g remaining Problem #2: Pd-100 has a half-life of 3.6 days.

#### What is the half life of Xe-133?

A significant amount of radioactivity (say 1025 Bq) is released in the environment by a radiological terrorist attack of an isotope with a half-life of 109 years. Without resorting to a calculation… The half-life of Xe-133 is 126 hours. Starting with 250 mg, after 500 hours, around how many mg remain?