Calculate the Least Common Multiple or LCM of 15, 176 and 251
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The instructions to find the LCM of 15, 176 and 251 are the next:
1. Decompose all numbers into prime factors
| 15 | 3 |
| 5 | 5 |
| 1 |
| 176 | 2 |
| 88 | 2 |
| 44 | 2 |
| 22 | 2 |
| 11 | 11 |
| 1 |
| 251 | 251 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 15 | = | 3 . 5 |
| Prime factors of 176 | = | 24 . 11 |
| Prime factors of 251 | = | 251 |
3. Choose the common and uncommon prime factors with the greatest exponent
Common prime factors: None
Common prime factors with the greatest exponent: None
Uncommon prime factors: 3 , 5 , 2 , 11 , 251
Uncommon prime factors with the greatest exponent: 31, 51, 24, 111, 2511
4. Calculate the Least Common Multiple or LCM
Remember, to find the LCM of several numbers you must multiply the common and uncommon prime factors with the greatest exponent of those numbers.
LCM = 31. 51. 24. 111. 2511 = 662640
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