45=3x3x5. 42=2x3x7
1, 2, 3, 6, 7, 14, 21, 42
1, 3, 5, 9, 15, 45
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42 = 2 * 3 * 7the prime factors of 42 are 1,2,3,7the product of these numbers is... 1x2x3x7 = 42
Oh, dude, composite numbers are like those numbers that have more factors than just 1 and themselves, you know? So, in the range 41-50, the composite numbers are 42, 44, 45, 46, 48, and 50. Hope that clears things up for ya!
The GCF of 45 and 54 is 6. The factors of 42 are 1,2,3,6, and 7 because these are the only numbers that will divide evenly into 42 with no remainder. The factors of 54 are 1,2,3,6, and 9. The common factors of these two numbers are 1,2,3, and 6 because they appear in both lists of factors. Of these common factors, 6 is the largest number. Therefore the greatest common factor for 42 and 54 is 6.
Composite numbers between 35 and 45 are: 36, 38, 39, 40, 42, and 44.
The composite numbers between 41 and 50 are: 42, 44, 45, 46, 48, 49, 50.