What is the lowest common multiple of 5, 7 and 10?

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mixtyggc · Accepted Answer

You don&#039;t need to factor 5 into the computation at all, because it is a factor of 10. So any number divisible by 10 will automatically be divisible by 5 as well.&amp;nbsp;7 and 10 have no common factor (other than 1), so their LCM will be their product.&amp;nbsp;∴LCM=7×10=70&amp;nbsp;We can use

prudomiajpt · Accepted Answer

To find the LCM (Lowest common multiple) of a set of numbers, you first find the multiples of each number and then identify the smallest common one among the set.
In this circumstance, using 5, 7, and 10. The smallest common multiple of each would be 70.
If we find the multiples of each of the numbers, we can see that no other number before 70 is common to all of them.
Multiples of 5: $5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, \dots$
Multiples of 7: $7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, \dots$
Multiples of 10: $10, 20, 30, 40, 50, 60, 70, 80, \dots$
You should be aware that 70 is the only common multiple up to this point. There may be other common multiples but you are looking for the smallest (or lowest) one.
Note: The way you find multiples is to multiply the number you are trying to find numbers for by each number in succession.
Example, multiples of
$3 : 3 (3 \times 1), 6 (3 \times 2), 9 (3 \times 3), 12 (3 \times 4), 15 (3 \times 5), \dots$

What is the lowest common multiple of 5, 7 and

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