a and b are two Positive integer such That the least prime factors l of a is 3 and b is 5. Then calculate the least prime factor of (a+b)
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The least prime factor of (a+b) is 15 as 3 * 5 = 15
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Think carefully....
If the least prime factor of any number is an odd number then the number itself is an odd number..
for example 9 whose least prime factor is 3.
And in the above example both the numbers a and b have odd least prime factors.
So, according to the knowledge you have gained.. you can say that both a and b are odd numbers. Am I right?
So adding a and b will produce an even number.
Whose least prime factor will be 2.
Thanks.
If the least prime factor of any number is an odd number then the number itself is an odd number..
for example 9 whose least prime factor is 3.
And in the above example both the numbers a and b have odd least prime factors.
So, according to the knowledge you have gained.. you can say that both a and b are odd numbers. Am I right?
So adding a and b will produce an even number.
Whose least prime factor will be 2.
Thanks.
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