Math
posted by melvin .
I am 55, my motherlaw is 70, my friend is 40. How do I figure out the LCM and the GCF. My home assignment is listed as= List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger.
Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. Make sure your work is clear and concise.
Find the LCM and the GCF for each set of numbers. Again, be clear and concise. Explain or show how you arrived at your answers.
In your own words, explain the meaning of your calculated LCM and GCF for the ages you selected. Do not explain how you got the numbers; rather explain the meaning of the numbers. Be specific to your numbers; do not give generic definitions.
Respond to at least two of your classmates’ postings. Did your classmates calculate the LCM and GCF correctly? Are their interpretations correctly applied to the ages?

FACTORS
GCF <= 40.
1 * 70 = 70
2 * 35 = 70
5 * 14 = 70
7 * 10 = 70
1 * 55 = 55
5 * 11 = 55
1 * 40 = 40
2 * 20 = 40
4 * 10 = 40
5 * 8 = 40
GCF = 5.
LCM =>70
Limit max. value to:70*55*40= 154000.
These numbers are very hard to work
with. I did this mostly by trial and error:
2 * 70 = 140
3 * 70 = 210
30 * 70 = 2100
40 * 70 = 2800
44 * 70 = 3080. This # is divisible
by 70, 55, and 40. It is the smallest
i could find.
LCM = 3080.
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