The only way you can really do these problems is to setup a table from one to seventy, and find a number that multiplies to give you 70. Once the numbers repeat, you have found all the factors.
1 x 70 = 70
2 x 35 = 70
5 x 14 = 70
7 x 10 = 70
10 x 7 = 70 (the numbers have now repeated, so we know we can stop)
The factors are:
1, 2, 5, 7, 10, 14, 35, and 70
So there are 8 factors.
The factors of 142 are 1, 2, 71, and 142.
The factors of 1147 are: 1, 31, 37, and 1147.The prime factors of 1147 are: 31 and 37.
Its only factors are itself and one because 71 is a prime number
The factors of 213 are: 1, 3, 71, and 213.The prime factors of 213 are: 3 and 71.
The GCF of 56 and 71 is 1. Hint: If the larger number is a prime number (no factors except 1 and itself such as 71) then the GCF will always be 1.
The factors of 38 are: 1, 2, 19, 38 The factors of 71 are: 1, 71
71 is a prime number, so the only factors it has are 1 and 71
The factors for 71 are 1 and 71.
1 and 71
71 is a prime number. It has no factors other than 1 and Itself. 1 and 71
71 is a prime number: its only factors are 1 and 71.
The factors of 33 are: 1, 3, 11, 33 The factors of 38 are: 1, 2, 19, 38 The factors of 71 are: 1, 71
1 and 71
1 and 71
71 is prime. Its only factors are one and itself.
71 is a prime number.
The on;y two factors of 71 are 1 and 71