The only factor they have in common is the number 1.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 31 are: 1, 31
The prime numbers between 30 and 50 are 31, 37, 42, 43 and 47.
42
Their only common factor is 1.
42
1, 2, 3, 6, 7, 14, 21, 42 1, 2, 5, 10, 25, 50
5 (+5=) 10 (+6=) 16 (+7=) 23 (+8=) 31 (+9=) 40 (+10=) 50 The incorrect number is 42. It should be 40.
The greatest common factor of 13 and 50 is 1.
2 + 5 + 10 + 25 = 42
42
Three: 36, 42, 48.
Just 1 for both.