34
The sum of the first 60 positive integers is 1830.
No. 12 is.16 isn't even a factor of 60.
The prime factor of 19 = 19. The prime factors of 76 = 2 x 2 x 19 They have the prime factor 19 in common, so 19 is the GCF of 19 and 76.
4, 12, 20, 60
No, 19 is a factor of 57.
12(6 + 5)
57
10, yes. 19, no.
19 + 20 + 21 = 60
5 + 2 = 7
19, 20, and 21
19, 20, 21
3, 12, 30
11+13+17+19= 60ANSWER: 60
47 + 3 = 50, 43 + 7 = 50, 37 + 13 = 50, and 31 + 19 = 50. 4 pairs of prime numbers have a sum of 50. 53 + 7 = 60, 47 + 13 = 60, 43 + 17 = 60, 41 + 19 = 60, 37 + 23 = 60, and 31 + 29 = 60. 6 pairs of prime numbers have a sum of 60.
60/3 = 20 so 19, 20 and 21.