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guapka [62]
4 years ago
9

What is the LCM of 21 and 105

Mathematics
2 answers:
astraxan [27]4 years ago
6 0

the LCM of 21 and 105 is 105.

adoni [48]4 years ago
5 0

Answer:

The answer to your question is 105

Step-by-step explanation:

To get the least common factor dividing both numbers by the prime numbers starting from 2.

But these numbers are not multiples of 2, try 3

                                                           21   105   3

These numbers are not multiples of 3 let's try 5                                                                    

                                                            7     35  5  

These numbers are multiples of 7     7       7   7

                                                            1        1

The LCM is the product of the prime numbers = 3 x 5 x 7 = 105

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