If a divides c and b divides c with gcd(a,b)=1 then ab will divide c

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If gcd(a,b) is different from 1, ab may or may not divide c but if gcd(a,b)=1 ab will always divide c. But with ab dividing c with a dividing c and b dividing c does not imply gcd (a,b)=1. 20 divides 100 awith 2 divides 100 and also 10 divides 100 but gcd(2,10)=2
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The explanation was brilliant! Thank you so much!!!!

lifeisgood.
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Though I didn't understand what u said as i fear maths but i liked it because u did this vid... Well done.. Vinodda..

rumpanaskar
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How do we know that there exists integers x, y which will multiply into a and b respectively that will sum to 1?

lukedevlin
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Say what? Is there a version of this in English?

LuxPhysics