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Earn +20 ptsQ: What are all the prime numbers from 20 and 40?
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What is the sum of all prime numbers between 20 and 40?
To find the sum of all prime numbers between 20 and 40, we first list out the prime numbers in that range: 23, 29, 31, 37. Then, we simply add them together: 23 + 29 + 31 + 37 = 120. Therefore, the sum of all prime numbers between 20 and 40 is 120.
What are the prime numbers from 20 to 40?
23 29 31 37.
What is the GCF of 28 20 and 40?
To find the GCF, you first need to break the numbers down into their prime factors: 28 = 2x2x7 20 = 2x2x5 40 = 2x2x2x5 The next step is to find any common prime factors. In this case, all three numbers have two 2s as prime factors. Multiply these and you get 4. Therefore the GCF of 28, 20 and 40 is 4.
What is the ratio of number of primes and numbers of composites between 20 and 40?
The prime numbers between 20 and 40 are 23, 29, 31 and 37 that is 4 out of 20 or 1 to 5
Prime numbers between 20 and 40?
23, 29, 31, 37
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