To find all the divisors of the number 347,944:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 347,944:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
347,944 = 23 × 23 × 31 × 61
347,944 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 347,944
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
composite factor = 2
2 =
4
composite factor = 2
3 =
8
prime factor =
23
prime factor =
31
composite factor = 2 × 23 =
46
prime factor =
61
composite factor = 2 × 31 =
62
composite factor = 2
2 × 23 =
92
composite factor = 2 × 61 =
122
composite factor = 2
2 × 31 =
124
composite factor = 2
3 × 23 =
184
composite factor = 2
2 × 61 =
244
composite factor = 2
3 × 31 =
248
composite factor = 2
3 × 61 =
488
This list continues below...
... This list continues from above
composite factor = 23 × 31 =
713
composite factor = 23 × 61 =
1,403
composite factor = 2 × 23 × 31 =
1,426
composite factor = 31 × 61 =
1,891
composite factor = 2 × 23 × 61 =
2,806
composite factor = 2
2 × 23 × 31 =
2,852
composite factor = 2 × 31 × 61 =
3,782
composite factor = 2
2 × 23 × 61 =
5,612
composite factor = 2
3 × 23 × 31 =
5,704
composite factor = 2
2 × 31 × 61 =
7,564
composite factor = 2
3 × 23 × 61 =
11,224
composite factor = 2
3 × 31 × 61 =
15,128
composite factor = 23 × 31 × 61 =
43,493
composite factor = 2 × 23 × 31 × 61 =
86,986
composite factor = 2
2 × 23 × 31 × 61 =
173,972
composite factor = 2
3 × 23 × 31 × 61 =
347,944
32 factors (divisors)
What times what is 347,944?
What number multiplied by what number equals 347,944?
All the combinations of any two natural numbers whose product equals 347,944.
1 × 347,944 = 347,944
2 × 173,972 = 347,944
4 × 86,986 = 347,944
8 × 43,493 = 347,944
23 × 15,128 = 347,944
31 × 11,224 = 347,944
46 × 7,564 = 347,944
61 × 5,704 = 347,944
62 × 5,612 = 347,944
92 × 3,782 = 347,944
122 × 2,852 = 347,944
124 × 2,806 = 347,944
184 × 1,891 = 347,944
244 × 1,426 = 347,944
248 × 1,403 = 347,944
488 × 713 = 347,944
16 unique multiplications The final answer:
(scroll down)