79
To figure out the HCF of 28 and 60, split them up into their prime factors: 28 = 2x2x7 60 = 2x2x3x5 The next step is to identify any common prime factors. In this case, both numbers have two 2s as prime factors. Multiply these together and you get: 2x2 = 4 Therefore 4 is the HCF of 28 and 60.
Factors multiply, like 4 and 6 or 3 and 8 or 2 and 12.
Find two integers such that they add up of 19 and multiply altogether to get -60. We can't determine these values with these conditions since: xy = -60 x + y = 19 y = -60/x x - 60/x = 19 x² - 60 = 19x x² - 19x = 60 x² - 19x + (-19/2)² = 60 + (-19/2)² (x - 19/2)² = 601/4 Since 601/4 is not the perfect square term, there are no factors of 6n² + 19n - 10.
Common factors of 52 and 60 are 1, 2 and 4.
60
60 and 120
2, 4, 6, 10, 12, 20, 30, 60 add up to 144.
-66
-71
79
46
34
-56
41
-71
-71