LCM_EXCEL2003 in Collabora Office: Use the Explicit Compatibility Function
Calculate common whole-number cycles with LCM_EXCEL2003 while preserving its distinct compatibility name.
Verification status: See the evidence and test scope described in this guide. How formula examples are checked
Quick answer: =LCM_EXCEL2003(8;12;18) has independently expected result 72. This is Collabora’s explicitly named Excel-2003 compatibility variant; it should not be silently rewritten to LCM.
Exact syntax and arguments
=LCM_EXCEL2003(Number 1 [; Number 2 [; … [; Number 255]]])
The brackets denote optional arguments and are not typed into the formula. The official reference accepts numbers, cell references or ranges, with one required argument and up to 255 argument positions. Use small positive whole numbers for the controls here. Formulas use English names and semicolon separators; adapt separators only to the target locale’s actual settings.
The result is the least common multiple. For positive integer inputs, it is the smallest positive integer divisible by every input. The official help distinguishes the suffixed compatibility functions from unsuffixed functions based on international standards. That documentation statement is not a claim that every edge case has been tested in Excel 2003 or that current Excel provides this exact suffixed name.
Example 1: synchronize three repeat cycles
Three inspections repeat every 8, 12 and 18 minutes, all beginning at the same starting time. Enter 8, 12 and 18 in A2:A4, and enter:
=LCM_EXCEL2003(A2:A4)
The independent target is 72 minutes. Seventy-two divides into nine 8-minute intervals, six 12-minute intervals and four 18-minute intervals. Prime factors also establish minimality: 8=2³, 12=2²×3 and 18=2×3²; retaining each largest required prime power gives 2³×3²=72.
The common starting time matters. If an inspection starts later, this function alone does not solve the shifted schedule. Convert all intervals to the same unit before passing them to the function.
Example 2: match full package quantities
One box contains 14 fasteners and another contains 21. To find the smallest matching quantity bought in whole boxes, use:
=LCM_EXCEL2003(14;21)
The independent result is 42 fasteners per side: three boxes of 14 or two boxes of 21. It is not the total of both purchases; buying both quantities would yield 84 fasteners. Repeating an input does not add a new divisibility condition, so =LCM_EXCEL2003(14;21;14) also mathematically targets 42.
Example 3: reconstruct a common denominator
For fractions with denominators 8 and 12, =LCM_EXCEL2003(8;12) targets 24. The numerators of 1/8 and 1/12 become 3 and 2, so their sum is 5/24, approximately 0.208333333333. Keep numerator and denominator separate if an exact fraction is the goal; a rounded decimal display is not an exact rational representation.
The vendor’s separate control =LCM_EXCEL2003(5;15;25) targets 75, confirmed independently by integer arithmetic. This control and the original examples above are expected values, not application observations.
Boundaries and troubleshooting
For one positive integer, the least common multiple is that integer: =LCM_EXCEL2003(7) mathematically targets 7. A repeated number has no effect, while adding a coprime count may greatly enlarge the result. Do not assume multiplying all inputs gives the least multiple: 14×21=294 is divisible by both, but is not the least shared value.
The pinned add-in implementation floors numeric list values with an approximate-floor helper and includes zero and negative checks. Those source details do not establish spreadsheet coercion of text, handling of blanks, validation order in mixed invalid lists, or a particular displayed error. In particular, the unsuffixed LCM page’s documented text/empty-cell omission rule must not be copied to this variant without evidence.
Use positive integer controls before investigating fractional inputs, zeros, negatives or very large relatively prime inputs on a named build. Such follow-up cases need their own observations; no exact native errors or numerical bounds are asserted here. Keep the _EXCEL2003 suffix when reproducing a compatibility workbook.
Availability and evidence limits
The official help was retrieved on October 17, 2026; the saved page identifies Collabora Office 26.04 Help. Its archived bytes were reviewed on October 19, 2026. The /latest/ address may change. This article relies on that dated snapshot, not a claim that the help was freshly fetched or the function executed on October 19. First introduction and last functioning build are unknown; desktop documentation does not establish availability in every Online or mobile deployment.
The branch corroboration is pinned to c1013fad0d38683630b48c01b6d5208b8d81181e from the audited distro/collabora/co-26.04 branch. Registration and saved financial source were retrieved October 17; the name-construction/add-in implementation file was retrieved October 19, 2026. Source inspection is not an installed-product test.
No native Collabora execution occurred. Every worked numerical result is an independent mathematical expectation. No screenshots or application error observations are supplied. The guide does not establish all locale, coercion, array, export or extreme-value behavior. A native follow-up should record product edition, build and locale and compare the supplied small controls before relying on application-specific behavior.
References and related guides
- Official LCM_EXCEL2003 help, snapshot retrieved October 17, 2026; reviewed October 19.
- Pinned compatibility registration, retrieved October 17, 2026.
- Pinned name construction and LCM implementation, retrieved October 19, 2026.
- Unsuffixed LCM and editorial standards.