The lcm command finds the least common multiple (LCM) of a set of integers or polynomials. (See also Section 11.2.7 for polynomials.)
| lcm(18,15) | 
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| lcm(-5-12*i,11-10*i) | 
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| lcm(18,15,21,36) | 
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| lcm([18,15,21,36]) | 
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| lcm([6,10,12],[21,5,8]) | 
or:
| lcm([[6,10,12],[21,5,8]]) | 
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