lcmlcmab
lcmlcmab is a term that appears to be a concatenation of "lcm" and "lcmab". The term "lcm" commonly refers to the Least Common Multiple, a fundamental concept in number theory and arithmetic. The Least Common Multiple of two integers, say a and b, is the smallest positive integer that is a multiple of both a and b. For example, the lcm of 4 and 6 is 12.
The addition of "ab" to "lcm" is not a standard mathematical notation or a widely recognized term.