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Explain why 3 5 7 plus 7 is a composite number?
Since 364 is divisible by more than 364 and 1, 364 is a composite number.
Is 6n2 plus 27 a prime number or a composite number?
Composite. It is divisible by 3 for any n.
What is the composite number greater than 500 but less than 520?
There is no "THE" composite number. It could be any one of 501, 502, 504, 505, plus many more.
Is 22225555 plus 55552222 a prime number or not?
It is not because the first number ends in 5 and any number ending in five multiplied by another number is composite. Also, the second number ends in two, and any number ending in two multiplied by another number is composite. So, in conclusion, the number is not prime.
What is the sum of the 10th prime number and the 10th composite number?
ok so this is a little hard umm... the 10th prime number is let's see: 1,2,3,5,7,11,13,17,19,23 <------ 23 And the 10th composite number is: 4,6,8,9,10,12,14,15,16,18<------- 18 SO 23 plus 18 ISSSSSS........... 41 So the sum of the 10th prime number and the 10th composite number is 41!!! * * * * * 1 is neither prime nor composite. So the tenth prime is actually 29 and the sum is 47.
