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Earn +20 ptsQ: What are the composite numbers between 20 and 70?
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How many composite numbers are there between 70 and 90?
70 and 90
What are composite numbers between 50 and 70?
51,52,54,55,56,57,58,60,62,63,64,65,66,68,69 are the composite numbers between 50 and 70.
What is the sum of all composite numbers between 70 and 80?
452
What are composite numbers between 60 and 70?
All of them except for 61 and 67 which are prime numbers
Why are 70 and 80 prime numbers?
ANSWER: 70 and 80 are not prime numbers. They are composite numbers:70 is a composite number because the factors of 70 other 1 and itself (70) are 2, 5, 7, 10, 14, and 35.80 is also a composite number because the factors of 80 other 1 and itself (80) are 2, 4, 5, 8, 10,16, 20, and 40.
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