4

4 devanaagari lipi mein prayukt hone waali ek sankhya hai. isko chaar kehte hai. angreji bhaasha mein ise for (Four) ya 4 likhte hai.

ek ganit udahaaran ke tor pe 1 ko 4 se ghataane par 3 milta hai. 1 - 4 = 3