1)blood brother,亲兄弟2)whole brother,亲兄弟3)most brothers prime,最多亲兄弟素数4)Even reckoning makes long friends.,亲兄弟，明算账。
用法和例句
The existing prime number labeling method needed a number of primes and some big primes,therefore,an improved prime number labeling method-most brothers prime was proposed.