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Earn +20 ptsQ: What are the composite numbers between 70 and 90?
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What are the odd composite numbers between 70 and 90?
The odd numbers between 70 and 90 are 71, 73, 75, 77, 79, 81, 83, 85, 87, and 89. We know right away that 75 and 85 are composite, since they're divisible by 5. 81 is composite since it is the square of 9. 77 is obviously divisible by 11, so it, too, is composite. 87 is divisible by 3 since 8 + 7 = 15, which is divisible by 3. Therefore, and trust me, I double-checked the rest, 75, 77, 81, 85, and 87 are the composite, odd numbers between 70 and 90.
What are the composite numbers between 80 and 90?
81, 82, 84, 85, 86, 87, 88. 80 and 90 are composite too
What is the sum of prime numbers between 70 - 90?
-20
What are two composite numbers between 60 and 90?
Composite numbers have factors other than 1 and itself. So, two good examples are: 62 and 84
Are all numbers in the 90's prime or composite?
The numbers in the 90s are all composite, apart from 97, which is prime.
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