Calculate the Least Common Multiple or LCM of 185, 200 and 245
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The instructions to find the LCM of 185, 200 and 245 are the next:
1. Decompose all numbers into prime factors
| 185 | 5 |
| 37 | 37 |
| 1 |
| 200 | 2 |
| 100 | 2 |
| 50 | 2 |
| 25 | 5 |
| 5 | 5 |
| 1 |
| 245 | 5 |
| 49 | 7 |
| 7 | 7 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 185 | = | 5 . 37 |
| Prime factors of 200 | = | 23 . 52 |
| Prime factors of 245 | = | 5 . 72 |
3. Choose the common and uncommon prime factors with the greatest exponent
Common prime factors: 5
Common prime factors with the greatest exponent: 52
Uncommon prime factors: 37 , 2 , 7
Uncommon prime factors with the greatest exponent: 371, 23, 72
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 = 52. 371. 23. 72 = 362600
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