Big Number Calculator

All tools

Add, subtract, multiply, divide, modulo, power, GCD and factorial on arbitrarily large whole numbers — hundreds or thousands of digits — instantly in your browser.

Enter whole numbers — spaces, commas and underscores are ignored. Division shows the decimal result plus the quotient and remainder.

Result

0 digits 


					
					

						
							Scientific notation
							—
						
						
							Approximate name
							—
						
					


					

						

							

								

									Quotient
									—
								

							

						

						

							

								

									Remainder
									—
								

							

						

					


					
Every calculation runs locally using arbitrary-precision integers — nothing is sent to a server.

				

			


			
			

				

					
Big number names & scientific notation

					
Powers of ten and the name commonly given to each magnitude.

					

													

								10³
								thousand3 zeros
							

													

								10⁶
								million6 zeros
							

													

								10⁹
								billion9 zeros
							

													

								10¹²
								trillion12 zeros
							

													

								10¹⁵
								quadrillion15 zeros
							

													

								10¹⁸
								quintillion18 zeros
							

													

								10²¹
								sextillion21 zeros
							

													

								10²⁴
								septillion24 zeros
							

													

								10²⁷
								octillion27 zeros
							

													

								10³⁰
								nonillion30 zeros
							

													

								10³³
								decillion33 zeros
							

													

								10³⁶
								undecillion36 zeros
							

													

								10³⁹
								duodecillion39 zeros
							

													

								10⁴²
								tredecillion42 zeros
							

													

								10⁴⁵
								quattuordecillion45 zeros
							

													

								10⁴⁸
								quindecillion48 zeros
							

													

								10⁵¹
								sexdecillion51 zeros
							

													

								10⁵⁴
								septendecillion54 zeros
							

													

								10⁵⁷
								octodecillion57 zeros
							

													

								10⁶⁰
								novemdecillion60 zeros
							

													

								10⁶³
								vigintillion63 zeros
							

													

								10¹⁰⁰
								googol100 zeros
							

											

				

			

		

	


	
        
                    
	
	

					

				
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