WHAT IS ONE Share with your friends Share 1 Sriram answered this it is a number 1 View Full Answer Sabyasachi Bhattacharjee answered this ONE IS A NUMERAL OR A NATURAL NUMBER / WHOLE NUMBER . IT IS ALSO THE SMALLEST NATURAL NUMBER . IT,S ADDITIVE INVERSE IS -1 . 1 Jeevana Sai answered this one is a natural number or wholr number.it is also the smallest number. 1 Mohammed Shahrooz answered this a number 0 Abhinav Singh answered this A one is numeral or natural or whole number that start the counting 0