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Earn +20 ptsQ: Why 57 51 are not prime numbers?
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Is 51 and 57 prime?
No because they are both composite numbers
Is 51 and 57 prime numbers?
No. Neither one are. 51 = 17 x 3 57 = 19 x 3
Why are 51 57 87 and 91 not prime numbers?
because it has two or more factors
What numbers is halfway between 51 and 57?
(51+57)/2 = 54
Can you find 4 consecutive prime numbers that add up to 220?
Yes; they are 51, 53, 57, 59.
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