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It is even, and is the only even prime (the primes other than 2 are called the odd primes). Explore math with our beautiful, free online graphing calculator. No subscriptions, no paywalls, no catches.
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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. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. This is a free online math calculator together with a variety of other free math calculators that compute standard deviation, percentage, fractions, and more.
The number two (2) is the second positive integer and the first prime number.
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