Taking the number 4 from the 4 corners of the world plus the number 3 from the Holy Trinity-Father, Son and the Holy Spirit. Makes number 7. This number means completeness, perfection. Other examples in the Catholic Bible which includes the number 7: -7 days of creation (including the day of rest) -7 holy sacraments -7 virtues -7 deadly sins -Jesus saying to forgive others 77 times, not literally but it emphasising on the fact that we should always forgive. There are more examples on http://en.wikipedia.org/wiki/7_(number)#Christianity
The number 7.
In Christianity, red can represent the blood that Jesus Christ shed to save the world.
The Cross
The number 22/7=3.14159
7.052 is a mixed number and there is no way to represent it as a whole number. The whole part of it is 7.
Same thing as it does in ENglish.
A small wooden cross can represent Christianity. A Star of David can represent Judaism.
7/2 is a rational fraction and there is no sensible way to represent it as a whole number. There is no whole number in it.
It can, for example, in base 7 arithmetic.
The pH of bases is over 7.
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It represents purification and cleansing