The number two (2) is the second positive integer and the first prime number. Explore math with our beautiful, free online graphing calculator. This is a free online math calculator together with a variety of other free math calculators that compute standard deviation, percentage, fractions, and more.
Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more. The digit used in the modern western world to represent the number 2 traces its roots back to the indic brahmic script, where 2 was written as two horizontal lines.
It is even, and is the only even prime (the primes other than 2 are called the odd primes). 2 player games challenge a friend in our two player games! No subscriptions, no paywalls, no catches.