Question 454098
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I'll show you how to get all of the prime factors, and then you can calculate all of the composites that you care to.


The last digit of 1260 is even, so it is divisible by 2:  630


The last digit of 630 is even, so it is divisible by 2: 315


The last digit of 315 is odd, so not divisible by 2.


The sum of the digits of 315 is 9.  9 is divisible by 3, so 315 is divisible by 3:  105


The sum of the digits of 105 is 6.  6 is divisible by 3, so 105 is divisible by 3:  35


35 is divisible by 5:  7




The prime factorization:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 1260\ =\ 2\ \times\ 2\ \times\ 3\ \times\ 3\ \times\ 5\ \times\ 7]



John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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