4 and 3
(4 + 3 = 7)
or 1 and 6
(1 + 6 = 7)
or 5 and 2
(5 + 2 = 7)
The sum is 144 if 60 is included, 84 if not.
1 and 2.
2 + 3 + 5 = 10
12 x 5 = 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.
The product of 7 and 60 is 420. The sum of 7 and 60 is 67.
The sum is 144 if 60 is included, 84 if not.
60
36 and 24
1 and 2.
The factors of 91 are: 1 7 13 91.The prime factors are: 7 x 13The sum of the prime factors = 7 + 13 = 20
It's not entirely clear from the wording of your question what it is you want to know. Seven is a one-digit number. The sum of its digits is 7. Seven has two factors: 1 and 7. That sum is 8.
28
The prime factors of 28 are 2 and 7. Their sum is 9.
The odd factors of 70 are: 1, 5, 7, and 35. The sum of these factors is 48.
2 + 3 + 5 = 10
12 x 5 = 60