Python 3.9+mathterm

math.lcm

combinatorics

Returns the least common multiple of the integers. math.lcm(4, 6) → 12. Python 3.9+.

Syntax

math.lcm(*integers)

Zero is absorbing: if any argument is 0 the result is 0, so a single zero in a list silently wipes out the whole fold. With no arguments the answer is 1, which makes 1 the right seed when accumulating. The function only arrived in Python 3.9; on older versions you emulate it with the product divided by the gcd.

Examples

import math
print(math.lcm(4, 6))     # → 12
print(math.lcm(12, 18))   # → 36
print(math.lcm(3, 5, 7))  # → 105
print(math.lcm(0, 5))     # → 0
print(math.lcm(1, 100))   # → 100
print(math.lcm(6, 10, 15))  # → 30

See also

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